JRT MB2D42U USB/TTL Laser Distance Sensor Module, 20Hz, 0.03–40m, ±2mm, 3.3V, Class 2, 45×25×12mm, 9g

Overview

The JRT MB2D42U USB/TTL Laser Distance Sensor Module is a compact optical distance measuring module designed for integration into instruments and automation systems. It offers a 0.03~40 m measuring range at 20 Hz with ±2 mm accuracy and 1 mm resolution. The module uses a Class II laser (620~690 nm, <1 mW) and supports USB and UART TTL interfaces for easy setup and continuous measurement. Model variants and identifiers include MB2D42U and MB2D42-USB-231117 (manufacturing date code: 231117). Brand: JRT.

Key Features

• Measuring range: 0.03~40 m; frequency: 20 Hz; continuous measurement supported
• Measurement accuracy: ±2 mm; resolution: 1 mm; measuring time: 0.04~4 s
• Laser Class II, 620~690 nm, <1 mW output
• Interfaces: USB and UART TTL (digital USB sensor output)
• Supply: DC2.0~3.3 V (rated 3.3 V); supply current: 100 mA
• Compact: 45×25×12 mm; lightweight: 9 g
• Operating temperature: 0~40 ℃; storage temperature: -25~60 ℃
• Certificates: CE, RoHS, FCC
• Notes: In strong ambient light or poor target reflectivity, error may increase (±1 mm ± 50 PPM). Use a reflection board when needed. Extended operating temperature (-10~50 ℃) and analog options can be customized by the manufacturer.

Specifications

Debugging and Testing

• Use JRT serial port test software for quick evaluation (USB communication converter and cables required).
• Steps: open the test software; select the correct port; set the correct baud rate; open the port; click Measure for single measurement; click ConMeasure for continuous measurement; use StopMeasure to exit.
• Parsed real-time distance records are shown in the data record panel.
• RS485 to USB debugger is sold separately.

Applications

• Moving detection and distance measurement in instruments and embedded systems
• USB/TTL integration for electronic DIY projects and automation
• Optical measuring modules requiring compact size and low power

Details

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JRT MB2D42U USB/TTL Laser Distance Sensor with serial port interface and computer connection.

Distance Detection, Running Fix, Material Level Measurement, Workpiece Size Measurement, Crane Collision Avoidance, Type Change Monitoring.