{"product_id":"jhemcu-jhe42b-finder-buzzer","title":"JHEMCU JHE42B Finder BB 110dB Buzzer Alarm with LED Backup for Betaflight\/Cleanflight\/iNAV FC","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe JHEMCU JHE42B Finder BB is a buzzer alarm with LED light for FPV\/multirotor flight controllers. It supports traditional active-buzzer functions synchronized with the flight controller, and it can continue to emit an alarm after the main battery is disconnected (when installed and wired correctly).\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo operating modes\u003c\/strong\u003e:\n    \u003cul\u003e\n\u003cli\u003eWorks like a traditional active buzzer synchronized with the flight controller\u003c\/li\u003e\n\u003cli\u003eWhen the flight controller is normally connected and the main battery is powered off during flight, it automatically emits a \u003cstrong\u003e110 dB\u003c\/strong\u003e beeping sound after \u003cstrong\u003e30 seconds\u003c\/strong\u003e of power failure; the LED emits \u003cstrong\u003ewhite light\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm cancel\u003c\/strong\u003e: press and hold the release button for more than \u003cstrong\u003e2 seconds\u003c\/strong\u003e to turn off the sound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlight controller compatibility\u003c\/strong\u003e: compatible with \u003cstrong\u003eBetaflight (BF)\u003c\/strong\u003e, \u003cstrong\u003eCleanflight (CF)\u003c\/strong\u003e, and \u003cstrong\u003eINAV\u003c\/strong\u003e; connects to the flight controller \u003cstrong\u003ebuzzer interface\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging indication\u003c\/strong\u003e (when powered by the flight controller): red LED on = charging in progress; red LED off = fully charged; red LED flashing = flight controller powered off (wait 30 seconds)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eJHE42B Finder (BB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm sound level\u003c\/td\u003e\n\u003ctd\u003e110 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower-off alarm delay\u003c\/td\u003e\n\u003ctd\u003e30 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED light\u003c\/td\u003e\n\u003ctd\u003eWhite (during alarm mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e25*17*17MM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.4g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring (3-pin)\u003c\/td\u003e\n\u003ctd\u003eGreen: BZ-; Red: +5V; Black: GND\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eFor installation or wiring assistance, contact \u003ca href=\"https:\/\/rcdrone.top\/\" rel=\"nofollow\"\u003ehttps:\/\/rcdrone.top\/\u003c\/a\u003e or email \u003ca href=\"mailto:support@rcdrone.top\"\u003esupport@rcdrone.top\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eJHE42B Finder x 1 PCS\u003c\/li\u003e\n\u003cli\u003e3P*1.0MM line x 1 PCS\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eConnection Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConnect to the flight controller buzzer pads\/port: \u003cstrong\u003eGND\u003c\/strong\u003e, \u003cstrong\u003e+5V\u003c\/strong\u003e, \u003cstrong\u003eBZ-\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eConnection schematic reference (as labeled): Cleanflight\/Betaflight \u003cstrong\u003eF3\/F4\/F7\u003c\/strong\u003e flight controllers: \u003cstrong\u003eGND\u003c\/strong\u003e, \u003cstrong\u003e+5V\u003c\/strong\u003e, \u003cstrong\u003eBZ-\u003c\/strong\u003e to JHE42B Finder \u003cstrong\u003eGND\u003c\/strong\u003e, \u003cstrong\u003e+5V\u003c\/strong\u003e, \u003cstrong\u003eBZ-\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"JHEMCU JHE42B Finder BB 110dB FPV buzzer alarm with LED, compact housing and 3-pin connector\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/JHEMCU-JHE42B-Finder-BB-Ring-110dB-Buzzer-Alarm-with-LED.jpg?v=1782465761\"\u003e\u003cp\u003eLoud 110 dB finder buzzer with onboard LED helps locate a downed quad even after a power loss (when wired correctly).\u003c\/p\u003e\n\u003cimg alt=\"Side view of the JHE42B Finder BB buzzer module showing the protected housing and internal battery pack\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/JHEMCU-JHE42B-Finder-BB-110dB-Buzzer-Alarm-with-LED-Backup_ec1686e2-aa2e-4fb8-a94e-e9a1d6fcb42c.webp?v=1782466066\"\u003e\u003cimg alt=\"JHEMCU JHE42B Finder BB dimensions: 25×17×17 mm compact buzzer with LED board layout\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/JHEMCU-JHE42B-Finder-BB-110dB-Buzzer-Alarm-with-LED-Backup_cf020a04-2658-4f94-8f99-7364667f7bc8.webp?v=1782466075\"\u003e\u003cimg alt=\"JHE42B Finder BB wiring colors: green BZ-, red +5V, black GND, plus alarm-cancel button location\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/JHEMCU-JHE42B-Finder-BB-Ring-110dB-Buzzer-Alarm-with-LED_9f2c29f5-a8e4-4b80-8724-7b637c499977.jpg?v=1782465819\"\u003e\u003cp\u003eSimple 3-wire hookup to the flight controller buzzer pads: GND, +5V, and BZ-; hold the button to cancel the alarm.\u003c\/p\u003e\n\u003cimg alt=\"Package contents: JHE42B Finder BB buzzer with LED and included 3-pin cable harness\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/JHEMCU-JHE42B-Finder-BB-Ring-110dB-Buzzer-Alarm-with-LED_0cffdb0f-1a80-4cab-b44a-b862bd6f740d.jpg?v=1782465828\"\u003e\u003cp\u003eIncludes the Finder BB module and a 3-pin lead for quick connection to compatible flight controllers.\u003c\/p\u003e\n\u003cimg alt=\"JHE42B Finder BB on a digital scale showing approximately 7.4 g installed weight\" loading=\"lazy\" src=\"https:\/\/www.jhemcu.com\/pic\/other\/2023-07-08-13-39-113.jpg\"\u003e\u003cimg alt=\"Connection schematic for Betaflight\/Cleanflight F3 F4 F7 controllers to JHE42B Finder: GND, +5V, BZ-\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/JHEMCU-JHE42B-Finder-BB-Ring-110dB-Buzzer-Alarm-with-LED_b8aa177a-a7b6-4980-9ae5-fbfeae6344af.jpg?v=1782465856\"\u003e\u003cp\u003eWorks with Betaflight, Cleanflight, and iNAV by connecting to the standard buzzer interface pins.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JHEMCU","offers":[{"title":"Default Title","offer_id":53203783712992,"sku":"jhe-202378133636-1","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/54_0.jpg?v=1782314331","url":"https:\/\/rcdrone.top\/ar\/products\/jhemcu-jhe42b-finder-buzzer","provider":"RCDrone","version":"1.0","type":"link"}