This sensor switch can be used for motor speed measurement, position detection, etc
Using 3144E switch type sensor for Good temperature performance, it has high accuracy and high reliability.
Wiring Instructions:VCC -power positive,GND -power supply negative,DO -TTL digital output,AO -analog output (different distance output, different voltage).
Work Voltage: 3.3-5V
When the sensor senses a magnetic field, the digital output is low and the signal light is on; if no magnetic field is sensed, the digital output is high and the signal is not lit.