{"title":"Water Quality Sensors","description":"\u003cp\u003eWater monitoring probes and modules; match the measured parameter and calibration requirements.\u003c\/p\u003e","products":[{"product_id":"dfrobot-gravity-sen0169-v2-industrial-analog-ph-meter-pro-kit-0-1-ph-0-14-ph-3-3-5-5v-arduino-raspberry-pi","title":"DFRobot Gravity SEN0169-V2 Industrial Analog pH Meter Pro Kit (±0.1 pH, 0–14 pH, 3.3–5.5V, Arduino\/Raspberry Pi)","description":"\u003ch2 data-end=\"127\" data-start=\"116\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-end=\"853\" data-start=\"128\"\u003eThe \u003cstrong data-end=\"199\" data-start=\"132\"\u003eDFRobot SEN0169-V2 Gravity: Analog pH Sensor \/ Meter Pro Kit V2\u003c\/strong\u003e is an industrial-grade pH measurement kit designed for \u003cstrong data-end=\"270\" data-start=\"255\"\u003e24\/7 (7×24)\u003c\/strong\u003e water-quality monitoring. It delivers \u003cstrong data-end=\"338\" data-start=\"309\"\u003e±0.1 pH accuracy at 25 °C\u003c\/strong\u003e, supports \u003cstrong data-end=\"399\" data-start=\"349\"\u003etwo-point calibration (pH 4.00 \u0026amp; 7.00 buffers)\u003c\/strong\u003e, and features a robust \u003cstrong data-end=\"446\" data-start=\"423\"\u003eindustrial pH probe\u003c\/strong\u003e plus an upgraded \u003cstrong data-end=\"505\" data-start=\"464\"\u003esignal conversion board (transmitter)\u003c\/strong\u003e. With \u003cstrong data-end=\"525\" data-start=\"512\"\u003e3.3–5.5 V\u003c\/strong\u003e supply, \u003cstrong data-end=\"559\" data-start=\"534\"\u003e0–3.0 V analog output\u003c\/strong\u003e, \u003cstrong data-end=\"584\" data-start=\"561\"\u003eBNC probe connector\u003c\/strong\u003e, and \u003cstrong data-end=\"610\" data-start=\"590\"\u003eGravity PH2.0-3P\u003c\/strong\u003e interface, it integrates cleanly with \u003cstrong data-end=\"696\" data-start=\"649\"\u003eArduino, Raspberry Pi (via ADC), LattePanda\u003c\/strong\u003e, and other controllers. A \u003cstrong data-end=\"742\" data-start=\"723\"\u003e5 m probe cable\u003c\/strong\u003e and plug-and-play wiring simplify deployment for aquaculture, hydroponics, labs, and environmental monitoring.\u003c\/p\u003e\n\u003ch2 data-end=\"870\" data-start=\"855\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"1482\" data-start=\"871\"\u003e\n\u003cli data-end=\"990\" data-start=\"871\"\u003e\n\u003cp data-end=\"990\" data-start=\"873\"\u003e\u003cstrong data-end=\"893\" data-start=\"873\"\u003eIndustrial probe\u003c\/strong\u003e built for \u003cstrong data-end=\"933\" data-start=\"904\"\u003econtinuous 7×24 operation\u003c\/strong\u003e; typical life \u003cstrong data-end=\"961\" data-start=\"948\"\u003e\u0026gt;0.5 year\u003c\/strong\u003e (depends on water quality)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1086\" data-start=\"991\"\u003e\n\u003cp data-end=\"1086\" data-start=\"993\"\u003e\u003cstrong data-end=\"1021\" data-start=\"993\"\u003e±0.1 pH accuracy @ 25 °C\u003c\/strong\u003e; \u003cstrong data-end=\"1048\" data-start=\"1023\"\u003etwo-point calibration\u003c\/strong\u003e with standard buffers (4.00 \u0026amp; 7.00)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1191\" data-start=\"1087\"\u003e\n\u003cp data-end=\"1191\" data-start=\"1089\"\u003e\u003cstrong data-end=\"1104\" data-start=\"1089\"\u003eWide supply\u003c\/strong\u003e: \u003cstrong data-end=\"1119\" data-start=\"1106\"\u003e3.3–5.5 V\u003c\/strong\u003e; \u003cstrong data-end=\"1146\" data-start=\"1121\"\u003eanalog output 0–3.0 V\u003c\/strong\u003e with \u003cstrong data-end=\"1174\" data-start=\"1152\"\u003ehardware filtering\u003c\/strong\u003e for low jitter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1302\" data-start=\"1192\"\u003e\n\u003cp data-end=\"1302\" data-start=\"1194\"\u003e\u003cstrong data-end=\"1211\" data-start=\"1194\"\u003ePlug-and-play\u003c\/strong\u003e: \u003cstrong data-end=\"1220\" data-start=\"1213\"\u003eBNC\u003c\/strong\u003e probe connector + \u003cstrong data-end=\"1259\" data-start=\"1239\"\u003eGravity PH2.0-3P\u003c\/strong\u003e signal header; \u003cstrong data-end=\"1300\" data-start=\"1275\"\u003eno soldering required\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1419\" data-start=\"1303\"\u003e\n\u003cp data-end=\"1419\" data-start=\"1305\"\u003e\u003cstrong data-end=\"1337\" data-start=\"1305\"\u003eUniform board size\/connector\u003c\/strong\u003e for easy mechanical design; compatible with \u003cstrong data-end=\"1417\" data-start=\"1382\"\u003eArduino\/Raspberry Pi\/LattePanda\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1482\" data-start=\"1420\"\u003e\n\u003cp data-end=\"1482\" data-start=\"1422\"\u003e\u003cstrong data-end=\"1446\" data-start=\"1422\"\u003eUpgraded transmitter\u003c\/strong\u003e for improved stability and accuracy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1501\" data-start=\"1484\"\u003eSpecifications\u003c\/h2\u003e\n\u003ch3 data-end=\"1547\" data-start=\"1503\"\u003eSignal Conversion Board (Transmitter) V2\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"1795\" data-start=\"1548\"\u003e\n\u003cthead data-end=\"1564\" data-start=\"1548\"\u003e\n\u003ctr data-end=\"1564\" data-start=\"1548\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1555\" data-start=\"1548\"\u003eItem\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1564\" data-start=\"1555\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"1795\" data-start=\"1575\"\u003e\n\u003ctr data-end=\"1605\" data-start=\"1575\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1592\" data-start=\"1575\"\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1605\" data-start=\"1592\"\u003e3.3–5.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1643\" data-start=\"1606\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1623\" data-start=\"1606\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1643\" data-start=\"1623\"\u003e0–3.0 V (analog)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1669\" data-start=\"1644\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1662\" data-start=\"1644\"\u003eProbe Connector\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1669\" data-start=\"1662\"\u003eBNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1701\" data-start=\"1670\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1689\" data-start=\"1670\"\u003eSignal Connector\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1701\" data-start=\"1689\"\u003ePH2.0-3P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1744\" data-start=\"1702\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1725\" data-start=\"1702\"\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1744\" data-start=\"1725\"\u003e±0.1 pH @ 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1795\" data-start=\"1745\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1758\" data-start=\"1745\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1795\" data-start=\"1758\"\u003e42 mm × 32 mm (1.66 in × 1.26 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-end=\"1828\" data-start=\"1797\"\u003epH Probe (Industrial Grade)\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2103\" data-start=\"1829\"\u003e\n\u003cthead data-end=\"1845\" data-start=\"1829\"\u003e\n\u003ctr data-end=\"1845\" data-start=\"1829\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1836\" data-start=\"1829\"\u003eItem\u003c\/th\u003e\n\u003cth data-col-size=\"md\" data-end=\"1845\" data-start=\"1836\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2103\" data-start=\"1856\"\u003e\n\u003ctr data-end=\"1889\" data-start=\"1856\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1874\" data-start=\"1856\"\u003eDetection Range\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"1889\" data-start=\"1874\"\u003epH \u003cstrong data-end=\"1887\" data-start=\"1879\"\u003e0–14\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1925\" data-start=\"1890\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1910\" data-start=\"1890\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"1925\" data-start=\"1910\"\u003e\u003cstrong data-end=\"1923\" data-start=\"1912\"\u003e0–60 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1960\" data-start=\"1926\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1937\" data-start=\"1926\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"1960\" data-start=\"1937\"\u003e\u003cstrong data-end=\"1958\" data-start=\"1939\"\u003e±0.1 pH @ 25 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1992\" data-start=\"1961\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1977\" data-start=\"1961\"\u003eResponse Time\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"1992\" data-start=\"1977\"\u003e\u003cstrong data-end=\"1990\" data-start=\"1979\"\u003e\u0026lt; 1 min\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2073\" data-start=\"1993\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2021\" data-start=\"1993\"\u003eContinuous Operation Life\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2073\" data-start=\"2021\"\u003e\n\u003cstrong data-end=\"2044\" data-start=\"2023\"\u003e7×24 h \u0026gt; 0.5 year\u003c\/strong\u003e (depends on water quality)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2103\" data-start=\"2074\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2089\" data-start=\"2074\"\u003eCable Length\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2103\" data-start=\"2089\"\u003e\u003cstrong data-end=\"2101\" data-start=\"2091\"\u003e500 cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-end=\"2138\" data-start=\"2105\"\u003eAttention (Installation \u0026amp; Use)\u003c\/h2\u003e\n\u003col data-end=\"2779\" data-start=\"2139\"\u003e\n\u003cli data-end=\"2274\" data-start=\"2139\"\u003e\n\u003cp data-end=\"2274\" data-start=\"2142\"\u003eKeep the \u003cstrong data-end=\"2168\" data-start=\"2151\"\u003eBNC connector\u003c\/strong\u003e and \u003cstrong data-end=\"2193\" data-start=\"2173\"\u003econversion board\u003c\/strong\u003e \u003cstrong data-end=\"2207\" data-start=\"2194\"\u003edry\/clean\u003c\/strong\u003e; moisture lowers input impedance and causes errors. Dry if damp.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2411\" data-start=\"2275\"\u003e\n\u003cp data-end=\"2411\" data-start=\"2278\"\u003eDo \u003cstrong data-end=\"2288\" data-start=\"2281\"\u003enot\u003c\/strong\u003e place the conversion board directly on wet or semiconductive surfaces; mount with \u003cstrong data-end=\"2388\" data-start=\"2371\"\u003enylon pillars\u003c\/strong\u003e and allow clearance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2474\" data-start=\"2412\"\u003e\n\u003cp data-end=\"2474\" data-start=\"2415\"\u003eProtect the probe’s \u003cstrong data-end=\"2449\" data-start=\"2435\"\u003eglass bulb\u003c\/strong\u003e from impact\/scratches.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2581\" data-start=\"2475\"\u003e\n\u003cp data-end=\"2581\" data-start=\"2478\"\u003e\u003cstrong data-end=\"2492\" data-start=\"2478\"\u003eDisconnect\u003c\/strong\u003e the probe from the board when powered off; avoid long periods connected without power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2779\" data-start=\"2582\"\u003e\n\u003cp data-end=\"2779\" data-start=\"2585\"\u003eThe probe cap contains \u003cstrong data-end=\"2625\" data-start=\"2608\"\u003e3.3 mol\/L KCl\u003c\/strong\u003e. White crystals may appear around the cap; as long as solution remains inside, \u003cstrong data-end=\"2741\" data-start=\"2705\"\u003eaccuracy and life are unaffected\u003c\/strong\u003e. Return crystals to the cap solution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 data-end=\"2793\" data-start=\"2781\"\u003eDocuments\u003c\/h2\u003e\n\u003cul data-end=\"2890\" data-start=\"2794\"\u003e\n\u003cli data-end=\"2854\" data-start=\"2794\"\u003e\n\u003cp data-end=\"2854\" data-start=\"2796\"\u003e\u003cstrong data-end=\"2852\" data-start=\"2796\"\u003eDFRobot Gravity: Analog pH Meter Pro V2 Product Wiki\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2890\" data-start=\"2855\"\u003e\n\u003cp data-end=\"2890\" data-start=\"2857\"\u003e\u003cstrong data-end=\"2890\" data-start=\"2857\"\u003eLiquid Sensor Selection Guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2912\" data-start=\"2892\"\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul data-end=\"3154\" data-start=\"2913\"\u003e\n\u003cli data-end=\"2949\" data-start=\"2913\"\u003e\n\u003cp data-end=\"2949\" data-start=\"2915\"\u003e\u003cstrong data-end=\"2947\" data-start=\"2915\"\u003eIndustrial-grade pH Probe ×1\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2990\" data-start=\"2950\"\u003e\n\u003cp data-end=\"2990\" data-start=\"2952\"\u003e\u003cstrong data-end=\"2988\" data-start=\"2952\"\u003epH Signal Conversion Board V2 ×1\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3029\" data-start=\"2991\"\u003e\n\u003cp data-end=\"3029\" data-start=\"2993\"\u003e\u003cstrong data-end=\"3027\" data-start=\"2993\"\u003eGravity Analog Sensor Cable ×1\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3058\" data-start=\"3030\"\u003e\n\u003cp data-end=\"3058\" data-start=\"3032\"\u003e\u003cstrong data-end=\"3056\" data-start=\"3032\"\u003eWaterproof Gasket ×2\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3097\" data-start=\"3059\"\u003e\n\u003cp data-end=\"3097\" data-start=\"3061\"\u003e\u003cstrong data-end=\"3095\" data-start=\"3061\"\u003eScrew Cap for BNC Connector ×1\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3129\" data-start=\"3098\"\u003e\n\u003cp data-end=\"3129\" data-start=\"3100\"\u003e\u003cstrong data-end=\"3127\" data-start=\"3100\"\u003eM3 × 10 Nylon Pillar ×4\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3154\" data-start=\"3130\"\u003e\n\u003cp data-end=\"3154\" data-start=\"3132\"\u003e\u003cstrong data-end=\"3152\" data-start=\"3132\"\u003eM3 × 5 Screws ×8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"3330\" data-is-last-node=\"\" data-is-only-node=\"\" data-start=\"3156\"\u003e\u003cem data-end=\"3164\" data-start=\"3156\"\u003eNotes:\u003c\/em\u003e For \u003ca href=\"https:\/\/rcdrone.top\/collections\/raspberry-pi\" title=\"Raspberry Pi\"\u003eRaspberry Pi\u003c\/a\u003e, use an external ADC to read the 0–3.0 V analog output. Calibrate with fresh pH 4.00 and pH 7.00 buffers at operating temperature for best accuracy.\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003e\u003cimg alt=\"Gravity: Analog pH Sensor \/Meter Pro V2\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sen0169-v2-ph-meter-XzyFc.webp?v=1757910612\" title=\"Gravity: Analog pH Sensor \/Meter Pro V2\"\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/collections\/dfrobot\"\u003eDFROBOT\u003c\/a\u003e Gravity pH Meter V2.0 connected to DFROBOT DFROduino UNO v3.0 board via analog input, measuring pH in liquid using probe submerged in beaker.\u003c\/p\u003e\n\u003cp\u003eArduino Connection Diagram\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0169-V2 pH Meter, Calibrate with fresh pH 4.00 and pH 7.00 buffers at operating temperature for best accuracy.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sen0169-v2-ph-meter-BeYVy.webp?v=1757910626\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0169-V2 pH Meter, Industrial pH probe for continuous operation, with ±0.1 pH accuracy, wide supply range, and plug-and-play design.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sen0169-v2-ph-meter-3gBwf.webp?v=1757910641\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0169-V2 pH Meter, The device delivers ±0.1 pH accuracy at 25 °C, supports two-point calibration, and features a robust probe and upgraded transmitter.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/pH-Meter-SEN0169-V2-JzQlx.webp?v=1757910657\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0169-V2 pH Meter, White crystals appearing around the cap do not affect solution accuracy or lifespan if the solution remains inside.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sen0169-v2-ph-meter-IQqNa.webp?v=1757910670\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0169-V2 pH Meter, Industrial analog pH meter kit with ±0.1 pH accuracy and range of 0-14 pH for use with Arduino or Raspberry Pi.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/ph-meter-sen0169-v2-2wrqw.webp?v=1757910684\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"SEN0169-V2 (3.3~5.5V)","offer_id":47756249661664,"sku":"SEN0169-V2","price":95.0,"currency_code":"USD","in_stock":true},{"title":"SEN0169 (5.0V)","offer_id":47756249694432,"sku":"SEN0169","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/SEN0169-V2_Main_01_1220x813_jpg.webp?v=1757909298"},{"product_id":"dfrobot-sen0161-v2-gravity-lab-grade-analog-ph-sensor-kit-arduino-raspberry-pi-calibration-solutions-included","title":"DFRobot SEN0161-V2 Gravity Lab-Grade Analog pH Sensor Kit (Arduino \/ Raspberry Pi, Calibration Solutions Included)","description":"\u003ch2 data-end=\"412\" data-start=\"401\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-end=\"903\" data-start=\"413\"\u003eThe \u003cstrong data-end=\"479\" data-start=\"417\"\u003e\u003ca href=\"https:\/\/rcdrone.top\/collections\/dfrobot\"\u003eDFRobot\u003c\/a\u003e SEN0161-V2 Gravity: Lab-Grade Analog pH Sensor Kit\u003c\/strong\u003e measures solution pH (0–14) with a laboratory-grade glass electrode and an upgraded signal conversion board. It supports \u003cstrong data-end=\"614\" data-start=\"601\"\u003e3.3–5.5 V\u003c\/strong\u003e mainboards, outputs \u003cstrong data-end=\"653\" data-start=\"635\"\u003e0–3.0 V analog\u003c\/strong\u003e, and uses \u003cstrong data-end=\"689\" data-start=\"664\"\u003etwo-point calibration\u003c\/strong\u003e (pH 4.00 \u0026amp; pH 7.00) with automatic buffer recognition for fast, stable setup. Ideal for aquaponics, aquaculture, and environmental testing. Works out-of-the-box with Arduino; for \u003ca href=\"https:\/\/rcdrone.top\/collections\/raspberry-pi\" title=\"Raspberry Pi\"\u003eRaspberry Pi\u003c\/a\u003e, use an external ADC.\u003c\/p\u003e\n\u003cp data-end=\"903\" data-start=\"413\"\u003e\u003ciframe height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/O-lhwwcAyJs?si=M0-QVgrfa2qVr8gC\" title=\"YouTube video player\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"920\" data-start=\"905\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"1369\" data-start=\"921\"\u003e\n\u003cli data-end=\"984\" data-start=\"921\"\u003e\n\u003cp data-end=\"984\" data-start=\"923\"\u003e\u003cstrong data-end=\"938\" data-start=\"923\"\u003eWide supply\u003c\/strong\u003e: 3.3–5.5 V compatible with 5 V \u0026amp; 3.3 V MCUs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1057\" data-start=\"985\"\u003e\n\u003cp data-end=\"1057\" data-start=\"987\"\u003e\u003cstrong data-end=\"1011\" data-start=\"987\"\u003eStable analog output\u003c\/strong\u003e: hardware-filtered, \u003cstrong data-end=\"1046\" data-start=\"1032\"\u003elow jitter\u003c\/strong\u003e, 0–3.0 V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1148\" data-start=\"1058\"\u003e\n\u003cp data-end=\"1148\" data-start=\"1060\"\u003e\u003cstrong data-end=\"1082\" data-start=\"1060\"\u003eSimple calibration\u003c\/strong\u003e: software library with \u003cstrong data-end=\"1119\" data-start=\"1106\"\u003etwo-point\u003c\/strong\u003e auto buffer ID (4.00\/7.00)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1219\" data-start=\"1149\"\u003e\n\u003cp data-end=\"1219\" data-start=\"1151\"\u003e\u003cstrong data-end=\"1168\" data-start=\"1151\"\u003ePlug-and-play\u003c\/strong\u003e: Gravity 3-pin (PH2.0) + \u003cstrong data-end=\"1201\" data-start=\"1194\"\u003eBNC\u003c\/strong\u003e probe connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1299\" data-start=\"1220\"\u003e\n\u003cp data-end=\"1299\" data-start=\"1222\"\u003e\u003cstrong data-end=\"1245\" data-start=\"1222\"\u003eUniform form factor\u003c\/strong\u003e: easy mechanical integration across Gravity sensors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1369\" data-start=\"1300\"\u003e\n\u003cp data-end=\"1369\" data-start=\"1302\"\u003e\u003cstrong data-end=\"1321\" data-start=\"1302\"\u003eLab-grade probe\u003c\/strong\u003e: 0–14 detection range, \u003cstrong data-end=\"1360\" data-start=\"1345\"\u003e±0.1 @25 °C\u003c\/strong\u003e accuracy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1388\" data-start=\"1371\"\u003eSpecifications\u003c\/h2\u003e\n\u003ch3 data-end=\"1434\" data-start=\"1390\"\u003eSignal Conversion Board (Transmitter) V2\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"1705\" data-start=\"1435\"\u003e\n\u003cthead data-end=\"1450\" data-start=\"1435\"\u003e\n\u003ctr data-end=\"1450\" data-start=\"1435\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1442\" data-start=\"1435\"\u003eItem\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1450\" data-start=\"1442\"\u003eSpec\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"1705\" data-start=\"1461\"\u003e\n\u003ctr data-end=\"1495\" data-start=\"1461\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1478\" data-start=\"1461\"\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1495\" data-start=\"1478\"\u003e\u003cstrong data-end=\"1493\" data-start=\"1480\"\u003e3.3–5.5 V\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1537\" data-start=\"1496\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1513\" data-start=\"1496\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1537\" data-start=\"1513\"\u003e\n\u003cstrong data-end=\"1526\" data-start=\"1515\"\u003e0–3.0 V\u003c\/strong\u003e (analog)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1567\" data-start=\"1538\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1556\" data-start=\"1538\"\u003eProbe Connector\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1567\" data-start=\"1556\"\u003e\u003cstrong data-end=\"1565\" data-start=\"1558\"\u003eBNC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1613\" data-start=\"1568\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1587\" data-start=\"1568\"\u003eSignal Connector\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1613\" data-start=\"1587\"\u003e\u003cstrong data-end=\"1611\" data-start=\"1589\"\u003ePH2.0-3P (Gravity)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1656\" data-start=\"1614\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1637\" data-start=\"1614\"\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1656\" data-start=\"1637\"\u003e\u003cstrong data-end=\"1654\" data-start=\"1639\"\u003e±0.1 @25 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1705\" data-start=\"1657\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1670\" data-start=\"1657\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1705\" data-start=\"1670\"\u003e\n\u003cstrong data-end=\"1686\" data-start=\"1672\"\u003e42 × 32 mm\u003c\/strong\u003e (1.66 × 1.26 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-end=\"1738\" data-start=\"1707\"\u003epH Probe (Laboratory Grade)\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2044\" data-start=\"1739\"\u003e\n\u003cthead data-end=\"1754\" data-start=\"1739\"\u003e\n\u003ctr data-end=\"1754\" data-start=\"1739\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1746\" data-start=\"1739\"\u003eItem\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1754\" data-start=\"1746\"\u003eSpec\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2044\" data-start=\"1765\"\u003e\n\u003ctr data-end=\"1798\" data-start=\"1765\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1783\" data-start=\"1765\"\u003eDetection Range\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1798\" data-start=\"1783\"\u003e\u003cstrong data-end=\"1796\" data-start=\"1785\"\u003epH 0–14\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1834\" data-start=\"1799\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1819\" data-start=\"1799\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1834\" data-start=\"1819\"\u003e\u003cstrong data-end=\"1832\" data-start=\"1821\"\u003e5–60 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1866\" data-start=\"1835\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1848\" data-start=\"1835\"\u003eZero Point\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1866\" data-start=\"1848\"\u003e\u003cstrong data-end=\"1864\" data-start=\"1850\"\u003epH 7 ± 0.5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1898\" data-start=\"1867\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1883\" data-start=\"1867\"\u003eResponse Time\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1898\" data-start=\"1883\"\u003e\u003cstrong data-end=\"1896\" data-start=\"1885\"\u003e\u0026lt; 2 min\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1937\" data-start=\"1899\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1921\" data-start=\"1899\"\u003eInternal Resistance\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1937\" data-start=\"1921\"\u003e\u003cstrong data-end=\"1935\" data-start=\"1923\"\u003e\u0026lt; 250 MΩ\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1990\" data-start=\"1938\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1953\" data-start=\"1938\"\u003eTypical Life\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1990\" data-start=\"1953\"\u003e\n\u003cstrong data-end=\"1970\" data-start=\"1955\"\u003e\u0026gt; 0.5 years\u003c\/strong\u003e (usage-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2020\" data-start=\"1991\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2006\" data-start=\"1991\"\u003eCable Length\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2020\" data-start=\"2006\"\u003e\u003cstrong data-end=\"2018\" data-start=\"2008\"\u003e100 cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2044\" data-start=\"2021\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2033\" data-start=\"2021\"\u003eConnector\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2044\" data-start=\"2033\"\u003e\u003cstrong data-end=\"2042\" data-start=\"2035\"\u003eBNC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-end=\"2077\" data-start=\"2046\"\u003eCompatibility \u0026amp; Applications\u003c\/h2\u003e\n\u003cul data-end=\"2329\" data-start=\"2078\"\u003e\n\u003cli data-end=\"2140\" data-start=\"2078\"\u003e\n\u003cp data-end=\"2140\" data-start=\"2080\"\u003e\u003cstrong data-end=\"2100\" data-start=\"2080\"\u003eMicrocontrollers\u003c\/strong\u003e: Arduino (direct), ESP32, STM32, etc.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2233\" data-start=\"2141\"\u003e\n\u003cp data-end=\"2233\" data-start=\"2143\"\u003e\u003cstrong data-end=\"2169\" data-start=\"2143\"\u003eSingle-board computers\u003c\/strong\u003e: Raspberry Pi \u003cstrong data-end=\"2205\" data-start=\"2184\"\u003ewith external ADC\u003c\/strong\u003e (since output is analog).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2329\" data-start=\"2234\"\u003e\n\u003cp data-end=\"2329\" data-start=\"2236\"\u003e\u003cstrong data-end=\"2249\" data-start=\"2236\"\u003eUse cases\u003c\/strong\u003e: aquaponics, aquaculture, hydroponics, laboratories, field sampling, education.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2365\" data-start=\"2331\"\u003eWhat’s Included (Shipping List)\u003c\/h2\u003e\n\u003cul data-end=\"2655\" data-start=\"2366\"\u003e\n\u003cli data-end=\"2401\" data-start=\"2366\"\u003e\n\u003cp data-end=\"2401\" data-start=\"2368\"\u003e\u003cstrong data-end=\"2396\" data-start=\"2368\"\u003eLab-grade pH probe (BNC)\u003c\/strong\u003e ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2444\" data-start=\"2402\"\u003e\n\u003cp data-end=\"2444\" data-start=\"2404\"\u003e\u003cstrong data-end=\"2439\" data-start=\"2404\"\u003epH signal conversion board (V2)\u003c\/strong\u003e ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2483\" data-start=\"2445\"\u003e\n\u003cp data-end=\"2483\" data-start=\"2447\"\u003e\u003cstrong data-end=\"2478\" data-start=\"2447\"\u003eGravity analog sensor cable\u003c\/strong\u003e ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2516\" data-start=\"2484\"\u003e\n\u003cp data-end=\"2516\" data-start=\"2486\"\u003e\u003cstrong data-end=\"2511\" data-start=\"2486\"\u003epH 4.00 buffer powder\u003c\/strong\u003e ×2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2549\" data-start=\"2517\"\u003e\n\u003cp data-end=\"2549\" data-start=\"2519\"\u003e\u003cstrong data-end=\"2544\" data-start=\"2519\"\u003epH 7.00 buffer powder\u003c\/strong\u003e ×2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2578\" data-start=\"2550\"\u003e\n\u003cp data-end=\"2578\" data-start=\"2552\"\u003e\u003cstrong data-end=\"2573\" data-start=\"2552\"\u003eWaterproof gasket\u003c\/strong\u003e ×2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2603\" data-start=\"2579\"\u003e\n\u003cp data-end=\"2603\" data-start=\"2581\"\u003e\u003cstrong data-end=\"2598\" data-start=\"2581\"\u003eBNC screw cap\u003c\/strong\u003e ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2634\" data-start=\"2604\"\u003e\n\u003cp data-end=\"2634\" data-start=\"2606\"\u003e\u003cstrong data-end=\"2629\" data-start=\"2606\"\u003eM3×10 nylon pillars\u003c\/strong\u003e ×4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2655\" data-start=\"2635\"\u003e\n\u003cp data-end=\"2655\" data-start=\"2637\"\u003e\u003cstrong data-end=\"2652\" data-start=\"2637\"\u003eM3×5 screws\u003c\/strong\u003e ×8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2675\" data-start=\"2657\"\u003eImportant Notes\u003c\/h2\u003e\n\u003cul data-end=\"3332\" data-start=\"2676\"\u003e\n\u003cli data-end=\"2792\" data-start=\"2676\"\u003e\n\u003cp data-end=\"2792\" data-start=\"2678\"\u003eKeep the \u003cstrong data-end=\"2704\" data-start=\"2687\"\u003eBNC connector\u003c\/strong\u003e and \u003cstrong data-end=\"2725\" data-start=\"2709\"\u003esignal board\u003c\/strong\u003e \u003cstrong data-end=\"2743\" data-start=\"2726\"\u003edry and clean\u003c\/strong\u003e to maintain high input impedance and accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2898\" data-start=\"2793\"\u003e\n\u003cp data-end=\"2898\" data-start=\"2795\"\u003eDo \u003cstrong data-end=\"2805\" data-start=\"2798\"\u003enot\u003c\/strong\u003e place the board on wet\/semiconductive surfaces; mount with the supplied \u003cstrong data-end=\"2895\" data-start=\"2878\"\u003enylon pillars\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2960\" data-start=\"2899\"\u003e\n\u003cp data-end=\"2960\" data-start=\"2901\"\u003eProtect the probe’s \u003cstrong data-end=\"2935\" data-start=\"2921\"\u003eglass bulb\u003c\/strong\u003e from impact\/scratches.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3079\" data-start=\"2961\"\u003e\n\u003cp data-end=\"3079\" data-start=\"2963\"\u003eAfter use, \u003cstrong data-end=\"2988\" data-start=\"2974\"\u003edisconnect\u003c\/strong\u003e the probe from the board; avoid leaving it connected \u003cstrong data-end=\"3059\" data-start=\"3042\"\u003ewithout power\u003c\/strong\u003e for long periods.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3215\" data-start=\"3080\"\u003e\n\u003cp data-end=\"3215\" data-start=\"3082\"\u003eThe probe cap contains \u003cstrong data-end=\"3122\" data-start=\"3105\"\u003e3.3 mol\/L KCl\u003c\/strong\u003e storage solution; salt crystals around the cap are normal—return them to the cap solution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3332\" data-start=\"3216\"\u003e\n\u003cp data-end=\"3332\" data-start=\"3218\"\u003eDesigned for \u003cstrong data-end=\"3266\" data-start=\"3231\"\u003elaboratory\/testing environments\u003c\/strong\u003e; extended continuous immersion can lead to \u003cstrong data-end=\"3331\" data-start=\"3310\"\u003emeasurement drift\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"3364\" data-start=\"3334\"\u003eCalibration \u0026amp; Use (Summary)\u003c\/h2\u003e\n\u003col data-end=\"3565\" data-start=\"3365\"\u003e\n\u003cli data-end=\"3395\" data-start=\"3365\"\u003e\n\u003cp data-end=\"3395\" data-start=\"3368\"\u003eRinse probe, blot gently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3488\" data-start=\"3396\"\u003e\n\u003cp data-end=\"3488\" data-start=\"3399\"\u003eCalibrate with pH 7.00, then pH 4.00 buffers using the library’s \u003cstrong data-end=\"3477\" data-start=\"3464\"\u003etwo-point\u003c\/strong\u003e routine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3565\" data-start=\"3489\"\u003e\n\u003cp data-end=\"3565\" data-start=\"3492\"\u003eMeasure; rinse between samples; store probe with KCl solution in the cap.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0161-V2 pH Sensor, Disconnect the probe from the board after use to avoid leaving it connected without power for long periods.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0161-V2-pH-Sensor-MtzvS.webp?v=1757919868\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0161-V2 pH Sensor, DFRobot SEN0161-V2 Gravity analog pH sensor kit for Arduino\/Raspberry Pi with calibration solutions.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0161-V2-pH-Sensor-MZTAI.webp?v=1757919881\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0161-V2 pH Sensor, A probe cap contains 3.3mol\/L KCl storage solution and normal salt crystals that should be returned to the cap solution.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0161-V2-pH-Sensor-ZgXni.webp?v=1757919895\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0161-V2 pH Sensor, The Signal Conversion Board and pH Probe are designed for microcontroller compatibility, featuring stable analog output, simple calibration, and lab-grade detection range.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0161-V2-pH-Sensor-w4ZsE.webp?v=1757919910\"\u003e\u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"SEN0161-V2 (3.3~5.5V)","offer_id":47756318507232,"sku":"SEN0161-V2-1","price":79.0,"currency_code":"USD","in_stock":true},{"title":"SEN0161 (5.0V)","offer_id":47756318540000,"sku":"SEN0161-V2-2","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/SEN0161-V2_Detail_05_1220x813_jpg.webp?v=1757935269"},{"product_id":"dfrobot-gravity-ec-sensors-dfr0300-k-1-dfr0300-h-k-10-for-arduino-raspberry-pi","title":"DFRobot Gravity Analog EC Sensors DFR0300 (K=1) \u0026 DFR0300-H (K=10) for Arduino\/Raspbe, Freshwater to Seawater Conductivity Kitsrry Pi","description":"\u003ch2 data-start=\"93\" data-end=\"113\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"114\" data-end=\"518\"\u003eCombine DFRobot \u003cstrong data-start=\"130\" data-end=\"147\"\u003eDFR0300 (K=1)\u003c\/strong\u003e and \u003cstrong data-start=\"152\" data-end=\"172\"\u003eDFR0300-H (K=10)\u003c\/strong\u003e into one EC (electrical conductivity) series covering \u003cstrong data-start=\"227\" data-end=\"260\"\u003efreshwater\/nutrient solutions\u003c\/strong\u003e through \u003cstrong data-start=\"269\" data-end=\"301\"\u003ehigh-salinity seawater\/brine\u003c\/strong\u003e. Both boards support \u003cstrong data-start=\"323\" data-end=\"336\"\u003e3.0–5.0 V\u003c\/strong\u003e input, \u003cstrong data-start=\"344\" data-end=\"378\"\u003eBNC probes + PH2.0-3Pin signal\u003c\/strong\u003e, \u003cstrong data-start=\"380\" data-end=\"397\"\u003eAC excitation\u003c\/strong\u003e (reduces polarization for stable readings and longer probe life), and \u003cstrong data-start=\"468\" data-end=\"485\"\u003eplug-and-play\u003c\/strong\u003e use with Arduino\/Raspberry Pi.\u003c\/p\u003e\n\u003cul data-start=\"519\" data-end=\"933\"\u003e\n\u003cli data-start=\"519\" data-end=\"649\"\u003e\n\u003cp data-start=\"521\" data-end=\"649\"\u003e\u003cstrong data-start=\"521\" data-end=\"532\"\u003eDFR0300\u003c\/strong\u003e uses \u003cstrong data-start=\"538\" data-end=\"563\"\u003etwo-point calibration\u003c\/strong\u003e (1413 µS\/cm \u0026amp; 12.88 mS\/cm), recommended range \u003cstrong data-start=\"610\" data-end=\"624\"\u003e1–15 mS\/cm\u003c\/strong\u003e (supports 0–20 mS\/cm).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"650\" data-end=\"933\"\u003e\n\u003cp data-start=\"652\" data-end=\"933\"\u003e\u003cstrong data-start=\"652\" data-end=\"665\"\u003eDFR0300-H\u003c\/strong\u003e uses \u003cstrong data-start=\"671\" data-end=\"699\"\u003esingle-point calibration\u003c\/strong\u003e for \u003cstrong data-start=\"704\" data-end=\"720\"\u003e10–100 mS\/cm\u003c\/strong\u003e high-EC liquids (seawater, concentrated brine).\u003cbr data-start=\"768\" data-end=\"771\"\u003eA temperature compensation algorithm is available in the libraries; for best accuracy, add a \u003cstrong data-start=\"864\" data-end=\"905\"\u003eDS18B20 waterproof temperature sensor\u003c\/strong\u003e for automatic compensation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"935\" data-end=\"1099\"\u003e\u003cstrong data-start=\"935\" data-end=\"952\"\u003eApplications:\u003c\/strong\u003e hydroponics\/aquaponics, freshwater \u0026amp; marine aquaria, aquaculture, environmental \u0026amp; wastewater monitoring, DIY multi-parameter water quality meters.\u003c\/p\u003e\n\u003ch2 data-start=\"1101\" data-end=\"1119\"\u003eModel Selection\u003c\/h2\u003e\n\u003cul data-start=\"1120\" data-end=\"1436\"\u003e\n\u003cli data-start=\"1120\" data-end=\"1235\"\u003e\n\u003cp data-start=\"1122\" data-end=\"1235\"\u003e\u003cstrong data-start=\"1122\" data-end=\"1140\"\u003eDFR0300 (K=1):\u003c\/strong\u003e low–mid EC (freshwater, nutrient solution); supports 0–20 mS\/cm; \u003cstrong data-start=\"1206\" data-end=\"1232\"\u003erecommended 1–15 mS\/cm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1436\"\u003e\n\u003cp data-start=\"1238\" data-end=\"1436\"\u003e\u003cstrong data-start=\"1238\" data-end=\"1259\"\u003eDFR0300-H (K=10):\u003c\/strong\u003e high EC (seawater, brine, high-salinity wastewater); \u003cstrong data-start=\"1313\" data-end=\"1329\"\u003e10–100 mS\/cm\u003c\/strong\u003e.\u003cbr data-start=\"1330\" data-end=\"1333\"\u003eTip: For wide coverage, use \u003cstrong data-start=\"1361\" data-end=\"1382\"\u003eboth K=1 and K=10\u003c\/strong\u003e probes with software-selectable calibration profiles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1438\" data-end=\"1467\"\u003eKey Features (Both Models)\u003c\/h2\u003e\n\u003cul data-start=\"1468\" data-end=\"1999\"\u003e\n\u003cli data-start=\"1468\" data-end=\"1530\"\u003e\n\u003cp data-start=\"1470\" data-end=\"1530\"\u003e\u003cstrong data-start=\"1470\" data-end=\"1486\"\u003ePlug \u0026amp; play:\u003c\/strong\u003e Gravity connector + BNC probe; no soldering\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1531\" data-end=\"1620\"\u003e\n\u003cp data-start=\"1533\" data-end=\"1620\"\u003e\u003cstrong data-start=\"1533\" data-end=\"1572\"\u003eAC excitation + hardware filtering:\u003c\/strong\u003e lower polarization\/jitter, more stable readings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1621\" data-end=\"1683\"\u003e\n\u003cp data-start=\"1623\" data-end=\"1683\"\u003e\u003cstrong data-start=\"1623\" data-end=\"1639\"\u003eWide supply:\u003c\/strong\u003e 3.0–5.0 V; compatible with 5 V \u0026amp; 3.3 V MCUs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1684\" data-end=\"1835\"\u003e\n\u003cp data-start=\"1686\" data-end=\"1748\"\u003e\u003cstrong data-start=\"1686\" data-end=\"1702\"\u003eCalibration:\u003c\/strong\u003e automatic recognition of standard solutions\u003c\/p\u003e\n\u003cul data-start=\"1751\" data-end=\"1835\"\u003e\n\u003cli data-start=\"1751\" data-end=\"1803\"\u003e\n\u003cp data-start=\"1753\" data-end=\"1803\"\u003eDFR0300: \u003cstrong data-start=\"1762\" data-end=\"1775\"\u003etwo-point\u003c\/strong\u003e (1413 µS\/cm, 12.88 mS\/cm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1806\" data-end=\"1835\"\u003e\n\u003cp data-start=\"1808\" data-end=\"1835\"\u003eDFR0300-H: \u003cstrong data-start=\"1819\" data-end=\"1835\"\u003esingle-point\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1836\" data-end=\"1927\"\u003e\n\u003cp data-start=\"1838\" data-end=\"1927\"\u003e\u003cstrong data-start=\"1838\" data-end=\"1876\"\u003eTemperature compensation algorithm\u003c\/strong\u003e in libraries (recommend \u003cstrong data-start=\"1901\" data-end=\"1912\"\u003eDS18B20\u003c\/strong\u003e for auto-comp)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1928\" data-end=\"1999\"\u003e\n\u003cp data-start=\"1930\" data-end=\"1999\"\u003e\u003cstrong data-start=\"1930\" data-end=\"1967\"\u003eUnified board size and connectors\u003c\/strong\u003e for easy mechanical integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"2001\" data-end=\"2018\"\u003eSpecifications\u003c\/h2\u003e\n\u003ch3 data-start=\"2020\" data-end=\"2048\"\u003eDFR0300 (K=1, Lab Grade)\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2049\" data-end=\"2479\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2049\" data-end=\"2064\"\u003e\n\u003ctr data-start=\"2049\" data-end=\"2064\"\u003e\n\u003cth data-start=\"2049\" data-end=\"2056\" data-col-size=\"sm\"\u003eItem\u003c\/th\u003e\n\u003cth data-start=\"2056\" data-end=\"2064\" data-col-size=\"sm\"\u003eSpec\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2075\" data-end=\"2479\"\u003e\n\u003ctr data-start=\"2075\" data-end=\"2105\"\u003e\n\u003ctd data-start=\"2075\" data-end=\"2092\" data-col-size=\"sm\"\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd data-start=\"2092\" data-end=\"2105\" data-col-size=\"sm\"\u003e3.0–5.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2106\" data-end=\"2134\"\u003e\n\u003ctd data-start=\"2106\" data-end=\"2123\" data-col-size=\"sm\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd data-start=\"2123\" data-end=\"2134\" data-col-size=\"sm\"\u003e0–3.4 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2135\" data-end=\"2182\"\u003e\n\u003ctd data-start=\"2135\" data-end=\"2162\" data-col-size=\"sm\"\u003eSignal \/ Probe Interface\u003c\/td\u003e\n\u003ctd data-start=\"2162\" data-end=\"2182\" data-col-size=\"sm\"\u003ePH2.0-3Pin \/ BNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2183\" data-end=\"2218\"\u003e\n\u003ctd data-start=\"2183\" data-end=\"2206\" data-col-size=\"sm\"\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd data-start=\"2206\" data-end=\"2218\" data-col-size=\"sm\"\u003e±5% F.S.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2219\" data-end=\"2274\"\u003e\n\u003ctd data-start=\"2219\" data-end=\"2248\" data-col-size=\"sm\"\u003eProbe Type \/ Cell Constant\u003c\/td\u003e\n\u003ctd data-start=\"2248\" data-end=\"2274\" data-col-size=\"sm\"\u003eLab grade, \u003cstrong data-start=\"2261\" data-end=\"2272\"\u003eK = 1.0\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2275\" data-end=\"2307\"\u003e\n\u003ctd data-start=\"2275\" data-end=\"2293\" data-col-size=\"sm\"\u003eSupported Range\u003c\/td\u003e\n\u003ctd data-start=\"2293\" data-end=\"2307\" data-col-size=\"sm\"\u003e0–20 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2308\" data-end=\"2346\"\u003e\n\u003ctd data-start=\"2308\" data-end=\"2328\" data-col-size=\"sm\"\u003eRecommended Range\u003c\/td\u003e\n\u003ctd data-start=\"2328\" data-end=\"2346\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2330\" data-end=\"2344\"\u003e1–15 mS\/cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2347\" data-end=\"2378\"\u003e\n\u003ctd data-start=\"2347\" data-end=\"2367\" data-col-size=\"sm\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd data-start=\"2367\" data-end=\"2378\" data-col-size=\"sm\"\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2379\" data-end=\"2425\"\u003e\n\u003ctd data-start=\"2379\" data-end=\"2393\" data-col-size=\"sm\"\u003eProbe Life*\u003c\/td\u003e\n\u003ctd data-start=\"2393\" data-end=\"2425\" data-col-size=\"sm\"\u003e\u0026gt;0.5 years (usage-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2426\" data-end=\"2451\"\u003e\n\u003ctd data-start=\"2426\" data-end=\"2441\" data-col-size=\"sm\"\u003eCable Length\u003c\/td\u003e\n\u003ctd data-start=\"2441\" data-end=\"2451\" data-col-size=\"sm\"\u003e100 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2452\" data-end=\"2479\"\u003e\n\u003ctd data-start=\"2452\" data-end=\"2465\" data-col-size=\"sm\"\u003eBoard Size\u003c\/td\u003e\n\u003ctd data-start=\"2465\" data-end=\"2479\" data-col-size=\"sm\"\u003e42 × 32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-start=\"2481\" data-end=\"2512\"\u003eDFR0300-H (K=10, Lab Grade)\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2513\" data-end=\"2917\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2513\" data-end=\"2528\"\u003e\n\u003ctr data-start=\"2513\" data-end=\"2528\"\u003e\n\u003cth data-start=\"2513\" data-end=\"2520\" data-col-size=\"sm\"\u003eItem\u003c\/th\u003e\n\u003cth data-start=\"2520\" data-end=\"2528\" data-col-size=\"sm\"\u003eSpec\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2539\" data-end=\"2917\"\u003e\n\u003ctr data-start=\"2539\" data-end=\"2569\"\u003e\n\u003ctd data-start=\"2539\" data-end=\"2556\" data-col-size=\"sm\"\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd data-start=\"2556\" data-end=\"2569\" data-col-size=\"sm\"\u003e3.0–5.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2570\" data-end=\"2598\"\u003e\n\u003ctd data-start=\"2570\" data-end=\"2587\" data-col-size=\"sm\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd data-start=\"2587\" data-end=\"2598\" data-col-size=\"sm\"\u003e0–3.2 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2599\" data-end=\"2646\"\u003e\n\u003ctd data-start=\"2599\" data-end=\"2626\" data-col-size=\"sm\"\u003eSignal \/ Probe Interface\u003c\/td\u003e\n\u003ctd data-start=\"2626\" data-end=\"2646\" data-col-size=\"sm\"\u003ePH2.0-3Pin \/ BNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2647\" data-end=\"2682\"\u003e\n\u003ctd data-start=\"2647\" data-end=\"2670\" data-col-size=\"sm\"\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd data-start=\"2670\" data-end=\"2682\" data-col-size=\"sm\"\u003e±5% F.S.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2683\" data-end=\"2741\"\u003e\n\u003ctd data-start=\"2683\" data-end=\"2712\" data-col-size=\"sm\"\u003eProbe Type \/ Cell Constant\u003c\/td\u003e\n\u003ctd data-start=\"2712\" data-end=\"2741\" data-col-size=\"sm\"\u003eLab grade, \u003cstrong data-start=\"2725\" data-end=\"2739\"\u003eK = 10 ± 2\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2742\" data-end=\"2780\"\u003e\n\u003ctd data-start=\"2742\" data-end=\"2760\" data-col-size=\"sm\"\u003eSupported Range\u003c\/td\u003e\n\u003ctd data-start=\"2760\" data-end=\"2780\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2762\" data-end=\"2778\"\u003e10–100 mS\/cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2781\" data-end=\"2812\"\u003e\n\u003ctd data-start=\"2781\" data-end=\"2801\" data-col-size=\"sm\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd data-start=\"2801\" data-end=\"2812\" data-col-size=\"sm\"\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2813\" data-end=\"2859\"\u003e\n\u003ctd data-start=\"2813\" data-end=\"2827\" data-col-size=\"sm\"\u003eProbe Life*\u003c\/td\u003e\n\u003ctd data-start=\"2827\" data-end=\"2859\" data-col-size=\"sm\"\u003e\u0026gt;0.5 years (usage-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2860\" data-end=\"2889\"\u003e\n\u003ctd data-start=\"2860\" data-end=\"2875\" data-col-size=\"sm\"\u003eCable Length\u003c\/td\u003e\n\u003ctd data-start=\"2875\" data-end=\"2889\" data-col-size=\"sm\"\u003e100 ± 2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2890\" data-end=\"2917\"\u003e\n\u003ctd data-start=\"2890\" data-end=\"2903\" data-col-size=\"sm\"\u003eBoard Size\u003c\/td\u003e\n\u003ctd data-start=\"2903\" data-end=\"2917\" data-col-size=\"sm\"\u003e42 × 32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"2919\" data-end=\"3021\"\u003e*Lab-grade probes are \u003cstrong data-start=\"2942\" data-end=\"2982\"\u003enot intended for long-term immersion\u003c\/strong\u003e; continuous soaking shortens lifespan.\u003c\/p\u003e\n\u003ch2 data-start=\"3023\" data-end=\"3043\"\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003ch3 data-start=\"3045\" data-end=\"3062\"\u003eDFR0300 (K=1)\u003c\/h3\u003e\n\u003cul data-start=\"3063\" data-end=\"3311\"\u003e\n\u003cli data-start=\"3063\" data-end=\"3095\"\u003e\n\u003cp data-start=\"3065\" data-end=\"3095\"\u003eEC Probe (K=1, lab grade) ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3096\" data-end=\"3129\"\u003e\n\u003cp data-start=\"3098\" data-end=\"3129\"\u003eSignal Conversion Board V2 ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3130\" data-end=\"3191\"\u003e\n\u003cp data-start=\"3132\" data-end=\"3191\"\u003eStandard Solutions: \u003cstrong data-start=\"3152\" data-end=\"3169\"\u003e1413 µS\/cm ×2\u003c\/strong\u003e, \u003cstrong data-start=\"3171\" data-end=\"3189\"\u003e12.88 mS\/cm ×2\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3192\" data-end=\"3226\"\u003e\n\u003cp data-start=\"3194\" data-end=\"3226\"\u003eGravity Analog Sensor Cable ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3227\" data-end=\"3270\"\u003e\n\u003cp data-start=\"3229\" data-end=\"3270\"\u003eWaterproof Gaskets ×2; BNC Screw Cap ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3271\" data-end=\"3311\"\u003e\n\u003cp data-start=\"3273\" data-end=\"3311\"\u003eM3×10 Nylon Pillars ×4; M3×5 Screws ×8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"3313\" data-end=\"3333\"\u003eDFR0300-H (K=10)\u003c\/h3\u003e\n\u003cul data-start=\"3334\" data-end=\"3560\"\u003e\n\u003cli data-start=\"3334\" data-end=\"3367\"\u003e\n\u003cp data-start=\"3336\" data-end=\"3367\"\u003eEC Probe (K=10, lab grade) ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3368\" data-end=\"3398\"\u003e\n\u003cp data-start=\"3370\" data-end=\"3398\"\u003eSignal Conversion Board ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3399\" data-end=\"3440\"\u003e\n\u003cp data-start=\"3401\" data-end=\"3440\"\u003eStandard Solution: \u003cstrong data-start=\"3420\" data-end=\"3438\"\u003e12.88 mS\/cm ×4\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3441\" data-end=\"3475\"\u003e\n\u003cp data-start=\"3443\" data-end=\"3475\"\u003eGravity Analog Sensor Cable ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3476\" data-end=\"3519\"\u003e\n\u003cp data-start=\"3478\" data-end=\"3519\"\u003eWaterproof Gaskets ×2; BNC Screw Cap ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3520\" data-end=\"3560\"\u003e\n\u003cp data-start=\"3522\" data-end=\"3560\"\u003eM3×10 Nylon Pillars ×4; M3×5 Screws ×8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"3562\" data-end=\"3577\"\u003eUsage \u0026amp; Care\u003c\/h2\u003e\n\u003cul data-start=\"3578\" data-end=\"3938\"\u003e\n\u003cli data-start=\"3578\" data-end=\"3680\"\u003e\n\u003cp data-start=\"3580\" data-end=\"3680\"\u003e\u003cstrong data-start=\"3580\" data-end=\"3607\"\u003ePlatinum black coating:\u003c\/strong\u003e rinse with \u003cstrong data-start=\"3619\" data-end=\"3643\"\u003edistilled water only\u003c\/strong\u003e; do not touch or wipe the coating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3681\" data-end=\"3841\"\u003e\n\u003cp data-start=\"3683\" data-end=\"3841\"\u003e\u003cstrong data-start=\"3683\" data-end=\"3710\"\u003eNo long-term immersion:\u003c\/strong\u003e lab-grade probes are for measurements, not permanent online use. For 24\/7 monitoring, keep spares or consider industrial probes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3842\" data-end=\"3938\"\u003e\n\u003cp data-start=\"3844\" data-end=\"3938\"\u003e\u003cstrong data-start=\"3844\" data-end=\"3873\"\u003eTemperature compensation:\u003c\/strong\u003e add \u003cstrong data-start=\"3878\" data-end=\"3889\"\u003eDS18B20\u003c\/strong\u003e for automatic compensation and tighter accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"3940\" data-end=\"3970\"\u003eCompatibility \u0026amp; Quick Start\u003c\/h2\u003e\n\u003cul data-start=\"3971\" data-end=\"4192\"\u003e\n\u003cli data-start=\"3971\" data-end=\"4020\"\u003e\n\u003cp data-start=\"3973\" data-end=\"4020\"\u003e\u003cstrong data-start=\"3973\" data-end=\"3982\"\u003eMCUs:\u003c\/strong\u003e Arduino, Raspberry Pi (5 V \/ 3.3 V)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4021\" data-end=\"4075\"\u003e\n\u003cp data-start=\"4023\" data-end=\"4075\"\u003e\u003cstrong data-start=\"4023\" data-end=\"4034\"\u003eWiring:\u003c\/strong\u003e Gravity 3-pin to MCU ADC; BNC to probe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4076\" data-end=\"4192\"\u003e\n\u003cp data-start=\"4078\" data-end=\"4192\"\u003e\u003cstrong data-start=\"4078\" data-end=\"4091\"\u003eSoftware:\u003c\/strong\u003e official libraries with calibration \u0026amp; temp-comp examples (DFR0300 two-point; DFR0300-H single-point)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/dfrobot-gravity-analog-ec-sensor-CzLjM.webp?v=1757923212\" alt=\"DFRobot Gravity Analog EC Sensor, Lab grade probe with constant K=10±2, suitable for 0-40°C and 10-100mS\/cm, with \u0026gt;0.5 year life expectancy.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/dfrobot-gravity-analog-ec-sensor-FA89n.webp?v=1757923225\" alt=\"DFRobot Gravity Analog EC Sensor, Both boards support various input types, including voltage, BNC probes, and AC excitation.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/dfrobot-gravity-analog-ec-sensor-ru1xE.webp?v=1757923241\" alt=\"DFRobot Gravity Analog EC Sensor, A temperature compensation algorithm is available to improve accuracy. Add a DS18B20 sensor for automatic compensation.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/dfrobot-gravity-analog-ec-sensor-ycrb1.webp?v=1757923257\" alt=\"DFRobot Gravity Analog EC Sensor, Gravity EC Meter V2.0 with conductivity solutions, sensor probe, and accessories.\"\u003e\u003c\/p\u003e\n\u003cp\u003eGravity EC Meter V2.0 with conductivity solutions, sensor probe, and accessories.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/dfrobot-gravity-analog-ec-sensor-cV8dZ.webp?v=1757923279\" alt=\"DFRobot Gravity Analog EC Sensor, DFRobot analog sensor measures liquid conductivity, ideal for water quality and experiments.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/collections\/dfrobot\"\u003eDFRobot\u003c\/a\u003e Gravity Analog Electrical Conductivity Sensor. Measures electrical conductivity in liquids. Features analog output for precise readings. Ideal for water quality monitoring and scientific experiments.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"DFR0300 (K=1 0~20ms\/cm)","offer_id":47756366938336,"sku":"DFR0300","price":179.0,"currency_code":"USD","in_stock":true},{"title":"DFR0300-H (K=10 10~100ms\/cm)","offer_id":47756366971104,"sku":"DFR0300-H","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/wechat_2025-09-15_153619_287.png?v=1757922256"},{"product_id":"dfrobot-sen0451-gravity-industrial-analog-ec-sensor-kit-k-1-ip68-100-2000-µs-cm-pt1000-temp-comp-3-3-5-v-for-arduino-raspberry-pi","title":"DFRobot SEN0451 Gravity Industrial Analog EC Sensor Kit (K=1), IP68, 100–2000 µS\/cm, PT1000 Temp Comp, 3.3–5 V for Arduino\/Raspberry Pi","description":"\u003ch2 data-end=\"537\" data-start=\"526\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-end=\"1314\" data-start=\"538\"\u003e\u003ca href=\"https:\/\/rcdrone.top\/collections\/dfrobot\"\u003eDFRobot\u003c\/a\u003e SEN0451 is an industrial-grade EC (electrical conductivity) sensor kit designed for continuous 24\/7 monitoring. The IP68 K=1 probe supports long-term immersion and integrates a \u003cstrong data-end=\"733\" data-start=\"723\"\u003ePT1000\u003c\/strong\u003e platinum RTD for easy temperature compensation. An \u003cstrong data-end=\"802\" data-start=\"785\"\u003eAC excitation\u003c\/strong\u003e source and onboard \u003cstrong data-end=\"844\" data-start=\"822\"\u003ehardware filtering\u003c\/strong\u003e minimize polarization and jitter for stable readings. The module outputs \u003cstrong data-end=\"927\" data-start=\"918\"\u003e0–3 V\u003c\/strong\u003e and accepts \u003cstrong data-end=\"953\" data-start=\"940\"\u003e3.3–5.0 V\u003c\/strong\u003e supply, making it plug-and-play with Arduino, \u003ca href=\"https:\/\/rcdrone.top\/collections\/raspberry-pi\" title=\"Raspberry Pi\"\u003eRaspberry Pi\u003c\/a\u003e, and other 3.3\/5 V controllers. With a practical range of \u003cstrong data-end=\"1089\" data-start=\"1071\"\u003e100–2000 µS\/cm\u003c\/strong\u003e (max 1–2200 µS\/cm), it’s ideal for hydroponics, aquaculture, and environmental water monitoring. The kit includes calibration solution and accessories so you can build an EC monitoring platform quickly—no soldering required.\u003c\/p\u003e\n\u003ch2 data-end=\"1331\" data-start=\"1316\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"1929\" data-start=\"1332\"\u003e\n\u003cli data-end=\"1420\" data-start=\"1332\"\u003e\n\u003cp data-end=\"1420\" data-start=\"1334\"\u003e\u003cstrong data-end=\"1365\" data-start=\"1334\"\u003eIndustrial IP68 probe (K=1)\u003c\/strong\u003e for long-term immersion; \u003cstrong data-end=\"1402\" data-start=\"1391\"\u003e0.5 MPa\u003c\/strong\u003e pressure rating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1516\" data-start=\"1421\"\u003e\n\u003cp data-end=\"1516\" data-start=\"1423\"\u003e\u003cstrong data-end=\"1457\" data-start=\"1423\"\u003ePractical range 100–2000 µS\/cm\u003c\/strong\u003e (max 1–2200 µS\/cm) for freshwater and nutrient solutions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1609\" data-start=\"1517\"\u003e\n\u003cp data-end=\"1609\" data-start=\"1519\"\u003e\u003cstrong data-end=\"1550\" data-start=\"1519\"\u003ePT1000 temperature detector\u003c\/strong\u003e for straightforward temperature-compensated measurements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1726\" data-start=\"1610\"\u003e\n\u003cp data-end=\"1726\" data-start=\"1612\"\u003e\u003cstrong data-end=\"1650\" data-start=\"1612\"\u003eAC excitation \u0026amp; hardware filtering\u003c\/strong\u003e reduce polarization and signal jitter, enhancing precision and probe life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1820\" data-start=\"1727\"\u003e\n\u003cp data-end=\"1820\" data-start=\"1729\"\u003e\u003cstrong data-end=\"1770\" data-start=\"1729\"\u003e3.3–5.0 V supply, 0–3 V analog output\u003c\/strong\u003e, Gravity interface; no soldering, plug-and-play\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1929\" data-start=\"1821\"\u003e\n\u003cp data-end=\"1929\" data-start=\"1823\"\u003e\u003cstrong data-end=\"1870\" data-start=\"1823\"\u003eIncluded calibration solution \u0026amp; accessories\u003c\/strong\u003e for quick setup; library with built-in calibration routine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1946\" data-start=\"1931\"\u003eApplications\u003c\/h2\u003e\n\u003cul data-end=\"2128\" data-start=\"1947\"\u003e\n\u003cli data-end=\"1985\" data-start=\"1947\"\u003e\n\u003cp data-end=\"1985\" data-start=\"1949\"\u003eHydroponics nutrient EC monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2026\" data-start=\"1986\"\u003e\n\u003cp data-end=\"2026\" data-start=\"1988\"\u003eAquaculture water quality management\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2083\" data-start=\"2027\"\u003e\n\u003cp data-end=\"2083\" data-start=\"2029\"\u003eEnvironmental water conductivity\/salinity assessment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2128\" data-start=\"2084\"\u003e\n\u003cp data-end=\"2128\" data-start=\"2086\"\u003eDIY multi-parameter water quality stations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2147\" data-start=\"2130\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2656\" data-start=\"2148\"\u003e\n\u003cthead data-end=\"2164\" data-start=\"2148\"\u003e\n\u003ctr data-end=\"2164\" data-start=\"2148\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2155\" data-start=\"2148\"\u003eItem\u003c\/th\u003e\n\u003cth data-col-size=\"md\" data-end=\"2164\" data-start=\"2155\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2656\" data-start=\"2175\"\u003e\n\u003ctr data-end=\"2205\" data-start=\"2175\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2192\" data-start=\"2175\"\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2205\" data-start=\"2192\"\u003e3.3–5.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2240\" data-start=\"2206\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2222\" data-start=\"2206\"\u003eOutput Signal\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2240\" data-start=\"2222\"\u003e0–3 V (analog)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2295\" data-start=\"2241\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2254\" data-start=\"2241\"\u003eProbe Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2295\" data-start=\"2254\"\u003eIndustrial grade, long-term immersion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2321\" data-start=\"2296\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2312\" data-start=\"2296\"\u003eCell Constant\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2321\" data-start=\"2312\"\u003eK = 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2354\" data-start=\"2322\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2338\" data-start=\"2322\"\u003eMaximum Range\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2354\" data-start=\"2338\"\u003e1–2200 µS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2395\" data-start=\"2355\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2373\" data-start=\"2355\"\u003ePractical Range\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2395\" data-start=\"2373\"\u003e\u003cstrong data-end=\"2393\" data-start=\"2375\"\u003e100–2000 µS\/cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2446\" data-start=\"2396\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2419\" data-start=\"2396\"\u003eTemperature Detector\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2446\" data-start=\"2419\"\u003e\n\u003cstrong data-end=\"2431\" data-start=\"2421\"\u003ePT1000\u003c\/strong\u003e platinum RTD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2497\" data-start=\"2447\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2471\" data-start=\"2447\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2497\" data-start=\"2471\"\u003e0–50 °C (non-freezing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2527\" data-start=\"2498\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2516\" data-start=\"2498\"\u003ePressure Rating\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2527\" data-start=\"2516\"\u003e0.5 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2555\" data-start=\"2528\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2547\" data-start=\"2528\"\u003eWaterproof Level\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2555\" data-start=\"2547\"\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2578\" data-start=\"2556\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2571\" data-start=\"2556\"\u003eCable Length\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2578\" data-start=\"2571\"\u003e5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2656\" data-start=\"2579\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2606\" data-start=\"2579\"\u003eController Compatibility\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2656\" data-start=\"2606\"\u003e3.3 V \/ 5 V mainboards (Arduino, Raspberry Pi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-end=\"2692\" data-start=\"2658\"\u003eWhat’s Included (Shipping List)\u003c\/h2\u003e\n\u003cul data-end=\"3039\" data-start=\"2693\"\u003e\n\u003cli data-end=\"2729\" data-start=\"2693\"\u003e\n\u003cp data-end=\"2729\" data-start=\"2695\"\u003eElectrical Conductivity Probe ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2803\" data-start=\"2730\"\u003e\n\u003cp data-end=\"2803\" data-start=\"2732\"\u003eElectrical Conductivity Signal Conversion Board (Industrial Grade) ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2845\" data-start=\"2804\"\u003e\n\u003cp data-end=\"2845\" data-start=\"2806\"\u003ePT1000 RTD Signal Conversion Board ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2873\" data-start=\"2846\"\u003e\n\u003cp data-end=\"2873\" data-start=\"2848\"\u003eGravity Sensor Cable ×2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2897\" data-start=\"2874\"\u003e\n\u003cp data-end=\"2897\" data-start=\"2876\"\u003eWaterproof Joint ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2934\" data-start=\"2898\"\u003e\n\u003cp data-end=\"2934\" data-start=\"2900\"\u003eWaterproof Aviation Connector ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3010\" data-start=\"2935\"\u003e\n\u003cp data-end=\"3010\" data-start=\"2937\"\u003eElectrical Conductivity Calibration Standard Solution \u003cstrong data-end=\"3005\" data-start=\"2991\"\u003e1413 µS\/cm\u003c\/strong\u003e ×4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3039\" data-start=\"3011\"\u003e\n\u003cp data-end=\"3039\" data-start=\"3013\"\u003eNylon Pillar Screws Kit ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"3066\" data-start=\"3041\"\u003eCalibration \u0026amp; Use Tips\u003c\/h2\u003e\n\u003cul data-end=\"3422\" data-start=\"3067\"\u003e\n\u003cli data-end=\"3208\" data-start=\"3067\"\u003e\n\u003cp data-end=\"3208\" data-start=\"3069\"\u003eCalibrate with the included \u003cstrong data-end=\"3111\" data-start=\"3097\"\u003e1413 µS\/cm\u003c\/strong\u003e standard; use an additional low\/high point if your target range requires two-point calibration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3315\" data-start=\"3209\"\u003e\n\u003cp data-end=\"3315\" data-start=\"3211\"\u003eRemove trapped air bubbles from the probe; ensure full immersion and stable temperature before reading\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3422\" data-start=\"3316\"\u003e\n\u003cp data-end=\"3422\" data-start=\"3318\"\u003eFor continuous deployments, schedule periodic cleaning and recalibration to maintain long-term stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0451 Analog EC Sensor, Industrial-grade conductivity probe with IP68 waterproof rating, suitable for hydroponics, aquaculture, and environmental monitoring.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Analog-EC-Sensor-h2LKG.webp?v=1757926660\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0451 Analog EC Sensor, Industrial-grade EC sensor kit for continuous monitoring\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Analog-EC-Sensor-VcPVZ.webp?v=1757926678\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0451 Analog EC Sensor, Ideal for hydroponics, aquaculture, and environmental water monitoring with a range of 100-2000 µS\/cm.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Analog-EC-Sensor-Al4Mu.webp?v=1757926694\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SEN0451 Analog EC Sensor, Industrial-grade EC sensor kit for continuous monitoring, suitable for 24\/7 use.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Analog-EC-Sensor-beQ5j.webp?v=1757926713\"\u003e\u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":47756393840864,"sku":"SEN0451","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/SEN0451_ShipList_04_1220x813_jpg.webp?v=1757926157"},{"product_id":"dfrobot-sen0237-a-gravity-analog-dissolved-oxygen-do-liquid-sensor-kit-0-20-mg-l-galvanic-probe-3-3-5-5-v-bnc-for-arduino-raspberry-pi-esp32","title":"DFRobot SEN0237-A Gravity Analog Dissolved Oxygen (DO) Liquid Sensor Kit, 0–20 mg\/L Galvanic Probe, 3.3–5.5 V, BNC — For Arduino\/Raspberry Pi\/ESP32","description":"\u003ch2 data-end=\"384\" data-start=\"373\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-end=\"797\" data-start=\"385\"\u003eDFRobot SEN0237-A is an analog dissolved oxygen (DO) liquid sensor kit that measures oxygen content in water to assess quality for aquaculture, hydroponics, and environmental monitoring. It pairs a galvanic DO probe (no polarization time) with a Gravity signal converter board (3.3–5.5 V input, 0–3.0 V analog output) for easy connection to Arduino, \u003ca href=\"https:\/\/rcdrone.top\/collections\/raspberry-pi\" title=\"Raspberry Pi\"\u003eRaspberry Pi\u003c\/a\u003e (via ADC HAT), ESP32, and other microcontrollers.\u003c\/p\u003e\n\u003ch2 data-end=\"814\" data-start=\"799\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"1235\" data-start=\"815\"\u003e\n\u003cli data-end=\"879\" data-start=\"815\"\u003e\n\u003cp data-end=\"879\" data-start=\"817\"\u003e\u003cstrong data-end=\"838\" data-start=\"817\"\u003eGalvanic DO probe\u003c\/strong\u003e — ready-to-use, no polarization delay.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"958\" data-start=\"880\"\u003e\n\u003cp data-end=\"958\" data-start=\"882\"\u003e\u003cstrong data-end=\"901\" data-start=\"882\"\u003eLow maintenance\u003c\/strong\u003e — replaceable membrane cap and refillable electrolyte.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1047\" data-start=\"959\"\u003e\n\u003cp data-end=\"1047\" data-start=\"961\"\u003e\u003cstrong data-end=\"983\" data-start=\"961\"\u003eWide compatibility\u003c\/strong\u003e — Gravity interface, 3.3–5.5 V supply, 0–3.0 V analog output.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1143\" data-start=\"1048\"\u003e\n\u003cp data-end=\"1143\" data-start=\"1050\"\u003e\u003cstrong data-end=\"1069\" data-start=\"1050\"\u003ePractical range\u003c\/strong\u003e — measures \u003cstrong data-end=\"1094\" data-start=\"1081\"\u003e0–20 mg\/L\u003c\/strong\u003e DO with fast response (≤90 s to 98% at 25 °C).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1235\" data-start=\"1144\"\u003e\n\u003cp data-end=\"1235\" data-start=\"1146\"\u003e\u003cstrong data-end=\"1162\" data-start=\"1146\"\u003eRugged build\u003c\/strong\u003e — \u003cstrong data-end=\"1177\" data-start=\"1165\"\u003e0–50 PSI\u003c\/strong\u003e pressure rating and \u003cstrong data-end=\"1205\" data-start=\"1198\"\u003e2 m\u003c\/strong\u003e cable with \u003cstrong data-end=\"1224\" data-start=\"1217\"\u003eBNC\u003c\/strong\u003e connector.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1254\" data-start=\"1237\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-end=\"1283\" data-start=\"1255\"\u003e\u003cstrong data-end=\"1281\" data-start=\"1255\"\u003eDissolved Oxygen Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1664\" data-start=\"1284\"\u003e\n\u003cli data-end=\"1302\" data-start=\"1284\"\u003e\n\u003cp data-end=\"1302\" data-start=\"1286\"\u003eType: Galvanic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1339\" data-start=\"1303\"\u003e\n\u003cp data-end=\"1339\" data-start=\"1305\"\u003eMeasurement Range: \u003cstrong data-end=\"1337\" data-start=\"1324\"\u003e0–20 mg\/L\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1383\" data-start=\"1340\"\u003e\n\u003cp data-end=\"1383\" data-start=\"1342\"\u003eResponse Time: \u003cstrong data-end=\"1373\" data-start=\"1357\"\u003e≤90 s to 98%\u003c\/strong\u003e (25 °C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1416\" data-start=\"1384\"\u003e\n\u003cp data-end=\"1416\" data-start=\"1386\"\u003ePressure Range: \u003cstrong data-end=\"1414\" data-start=\"1402\"\u003e0–50 PSI\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1460\" data-start=\"1417\"\u003e\n\u003cp data-end=\"1460\" data-start=\"1419\"\u003eService Life: ~\u003cstrong data-end=\"1444\" data-start=\"1434\"\u003e1 year\u003c\/strong\u003e (typical use)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1617\" data-start=\"1461\"\u003e\n\u003cp data-end=\"1477\" data-start=\"1463\"\u003eMaintenance:\u003c\/p\u003e\n\u003cul data-end=\"1617\" data-start=\"1480\"\u003e\n\u003cli data-end=\"1568\" data-start=\"1480\"\u003e\n\u003cp data-end=\"1568\" data-start=\"1482\"\u003eMembrane cap replacement: \u003cstrong data-end=\"1522\" data-start=\"1508\"\u003e1–2 months\u003c\/strong\u003e (muddy water), \u003cstrong data-end=\"1552\" data-start=\"1538\"\u003e4–5 months\u003c\/strong\u003e (clean water)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1617\" data-start=\"1571\"\u003e\n\u003cp data-end=\"1617\" data-start=\"1573\"\u003eFilling solution replacement: \u003cstrong data-end=\"1615\" data-start=\"1603\"\u003e~1 month\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1643\" data-start=\"1618\"\u003e\n\u003cp data-end=\"1643\" data-start=\"1620\"\u003eCable Length: \u003cstrong data-end=\"1641\" data-start=\"1634\"\u003e2 m\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1664\" data-start=\"1644\"\u003e\n\u003cp data-end=\"1664\" data-start=\"1646\"\u003eConnector: \u003cstrong data-end=\"1664\" data-start=\"1657\"\u003eBNC\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1694\" data-start=\"1666\"\u003e\u003cstrong data-end=\"1692\" data-start=\"1666\"\u003eSignal Converter Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1872\" data-start=\"1695\"\u003e\n\u003cli data-end=\"1731\" data-start=\"1695\"\u003e\n\u003cp data-end=\"1731\" data-start=\"1697\"\u003eOperating Voltage: \u003cstrong data-end=\"1729\" data-start=\"1716\"\u003e3.3–5.5 V\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1762\" data-start=\"1732\"\u003e\n\u003cp data-end=\"1762\" data-start=\"1734\"\u003eOutput: \u003cstrong data-end=\"1760\" data-start=\"1742\"\u003e0–3.0 V analog\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1791\" data-start=\"1763\"\u003e\n\u003cp data-end=\"1791\" data-start=\"1765\"\u003eProbe Connector: \u003cstrong data-end=\"1789\" data-start=\"1782\"\u003eBNC\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1843\" data-start=\"1792\"\u003e\n\u003cp data-end=\"1843\" data-start=\"1794\"\u003eSignal Connector: \u003cstrong data-end=\"1841\" data-start=\"1812\"\u003eGravity Analog (PH2.0-3P)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1872\" data-start=\"1844\"\u003e\n\u003cp data-end=\"1872\" data-start=\"1846\"\u003eDimensions: \u003cstrong data-end=\"1872\" data-start=\"1858\"\u003e42 × 32 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1905\" data-start=\"1874\"\u003eCompatibility \u0026amp; Applications\u003c\/h2\u003e\n\u003cul data-end=\"2086\" data-start=\"1906\"\u003e\n\u003cli data-end=\"1986\" data-start=\"1906\"\u003e\n\u003cp data-end=\"1986\" data-start=\"1908\"\u003e\u003cstrong data-end=\"1924\" data-start=\"1908\"\u003eMCUs\/Boards:\u003c\/strong\u003e Arduino, ESP32, and Raspberry Pi (requires ADC module\/HAT).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2086\" data-start=\"1987\"\u003e\n\u003cp data-end=\"2086\" data-start=\"1989\"\u003e\u003cstrong data-end=\"2003\" data-start=\"1989\"\u003eUse Cases:\u003c\/strong\u003e Aquaculture, hydroponics, environmental water testing, education, lab experiments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2115\" data-start=\"2088\"\u003eImportant Notes \u0026amp; Safety\u003c\/h2\u003e\n\u003cul data-end=\"2573\" data-start=\"2116\"\u003e\n\u003cli data-end=\"2280\" data-start=\"2116\"\u003e\n\u003cp data-end=\"2280\" data-start=\"2118\"\u003e\u003cstrong data-end=\"2143\" data-start=\"2118\"\u003eElectrolyte required:\u003c\/strong\u003e Filling solution is \u003cstrong data-end=\"2180\" data-start=\"2164\"\u003enot included\u003c\/strong\u003e due to air-transport regulations. Use \u003cstrong data-end=\"2237\" data-start=\"2219\"\u003e0.5 mol\/L NaOH\u003c\/strong\u003e; fill the membrane cap before first use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2372\" data-start=\"2281\"\u003e\n\u003cp data-end=\"2372\" data-start=\"2283\"\u003e\u003cstrong data-end=\"2304\" data-start=\"2283\"\u003eCorrosive liquid:\u003c\/strong\u003e Wear gloves; if contact occurs, rinse skin thoroughly with water.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2460\" data-start=\"2373\"\u003e\n\u003cp data-end=\"2460\" data-start=\"2375\"\u003e\u003cstrong data-end=\"2396\" data-start=\"2375\"\u003eHandle with care:\u003c\/strong\u003e The oxygen-permeable membrane is fragile—avoid sharp objects.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2573\" data-start=\"2461\"\u003e\n\u003cp data-end=\"2573\" data-start=\"2463\"\u003e\u003cstrong data-end=\"2483\" data-start=\"2463\"\u003eMeasurement tip:\u003c\/strong\u003e The probe consumes a small amount of oxygen; gently stir the sample for uniform readings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2594\" data-start=\"2575\"\u003ePackage Contents\u003c\/h2\u003e\n\u003cul data-end=\"2823\" data-start=\"2595\"\u003e\n\u003cli data-end=\"2651\" data-start=\"2595\"\u003e\n\u003cp data-end=\"2651\" data-start=\"2597\"\u003eGalvanic Dissolved Oxygen Probe with Membrane Cap ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2677\" data-start=\"2652\"\u003e\n\u003cp data-end=\"2677\" data-start=\"2654\"\u003eSpare Membrane Cap ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2707\" data-start=\"2678\"\u003e\n\u003cp data-end=\"2707\" data-start=\"2680\"\u003eSignal Converter Board ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2742\" data-start=\"2708\"\u003e\n\u003cp data-end=\"2742\" data-start=\"2710\"\u003eGravity Analog Sensor Cable ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2767\" data-start=\"2743\"\u003e\n\u003cp data-end=\"2767\" data-start=\"2745\"\u003eWaterproof Gasket ×2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2802\" data-start=\"2768\"\u003e\n\u003cp data-end=\"2802\" data-start=\"2770\"\u003eScrew Cap for BNC Connector ×1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2823\" data-start=\"2803\"\u003e\n\u003cp data-end=\"2823\" data-start=\"2805\"\u003ePlastic Dropper ×2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, A package contains a Galvanic Dissolved Oxygen Probe with Membrane Cap and various accessories like spare parts and cables.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-ItJss.webp?v=1757927763\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, The Gravity Dissolved Oxygen Sensor V1.0 by DFRobot is compact and includes a measurement scale for size reference.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-9tBqy.webp?v=1757927779\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/collections\/dfrobot\"\u003eDFRobot\u003c\/a\u003e Gravity Dissolved Oxygen Sensor V1.0 by DFRobot, featuring a compact design with measurement scale for size reference.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, The measurement tip suggests consuming a small amount of oxygen and stirring the sample gently for uniform readings.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-GHIEB.webp?v=1757927793\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, The practical range for measuring dissolved oxygen is 0-20 mg\/L with a fast response time of ≤90 seconds.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-kKhUr.webp?v=1757927807\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, Galvanic dissolved oxygen probe for measuring 0-20mg\/L with response time ≤90s, suitable for Arduino, ESP32, and Raspberry Pi.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-dPqFF.webp?v=1757927822\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, Fill the membrane cap with 0.5 mol\/L NaOH before first use.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-bjTew.webp?v=1757927836\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, The measurement range for practical purposes is between 0-20 milligrams per liter, with a response time of less than 90 seconds.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-uTSvV.webp?v=1757927850\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, Package contains various components including a galvanic dissolved oxygen probe, signal converter board, and other accessories.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-rQfKS.webp?v=1757927867\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"DFRobot SEN0237 DO Sensor, The DFRobot SEN0237 dissolved oxygen sensor connects to a DFRduino UNO v3.0 via analog input, using a probe and cable setup to measure oxygen levels in water for environmental monitoring.\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DFRobot-SEN0237-DO-Sensor-L96Qa.webp?v=1757927895\"\u003e\u003c\/p\u003e\n\u003cp\u003eDFRobot SEN0237 Dissolved Oxygen Sensor V1.0 connects to a DFRduino UNO v3.0 via analog input. It includes a probe connected by a cable, with power and signal wires. VCC, GND, and signal pins link to the microcontroller’s 5V, GND, and A0. This setup measures dissolved oxygen in water, ideal for environmental monitoring.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":47756445057248,"sku":"SEN0237-A","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/SEN0237-A_Main_01_1220x813_jpg.webp?v=1757927365"}],"url":"https:\/\/rcdrone.top\/collections\/water-quality-sensors.oembed","provider":"RCDrone","version":"1.0","type":"link"}