Get 5pcs LM393 3144 Hall Sensor Hall Switch Hall Sensor Module for Smart Car Geekcreit for Arduino - products that work with official Arduino boards >>>Manual: Click here to open<<< Specifications: Dimensions: length 32mmX width 11mmX height 20mm Main chip: LM393, 3144 Hall sensor magnetic induction probe Working voltage: DC 5 volts Features: 1. has a signal output indication; 2. With mounting holes for easy installation; 3. The output valid signal is low; 4. Sensitivity adjustable (fine adjustment); 5. Magnetic field induction detection sensitivity is extremely high; 6. The output of the circuit board can be directly connected to the IO port of the MCU; 7. Can be used for motor speed measurement, position detection and other occasions. Package Incldued: 5 x LM393 3144 Hall Sensor Hall Switch Module 5pcs LM393 3144 Hall Sensor Hall Switch Hall Sensor Module for Smart Car Geekcreit for Arduino - products that work with official Arduino boards See detail