Features: _x000D_ 1. Small size, it has high sensitivity and fast response _x000D_ 2. Good temperature performance, it has high accuracy and high reliability. _x000D_ 3. Using 3144E switch type sensor for stable performance _x000D_ 4. 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. _x000D_ 5. This effect sensor switch has a power indicator and a signal indicator. _x000D_ 6. Good waveform and strong driving ability _x000D_ 7. It is provided with fixing bolt holes for easy installation and fixing. _x000D_ 8. Can be used for motor speed measurement, position detection, etc. _x000D_ _x000D_ Specification: _x000D_ Condition: 100% Brand New _x000D_ Work Voltage: 3.3-5V _x000D_ _x000D_ Package List: _x000D_ 5 * Effect Sensor Switch _x000D_ _x000D_ Wiring instructions: _x000D_ 1. VCC -power positive _x000D_ 2. GND -power supply negative _x000D_ 3. DO -TTL digital output _x000D_ 4. AO -analog output (different distance output, different voltage) _x000D_ _x000D_ _x000D_ Note:_x000D_ New-style and old-style are shipped randomly