Features 1、Rotation Detector: The rotating object with Hall sensor, code disc and encoder is used to detect whether the object rotates or stops. 2、Monostable Trigger: The monostable trigger has only one stable state and one temporary stable state. Our monostable trigger have pulse shaping, timing, delay, and more. 3、PCB Board: Made of PCB board, the detector is sturdy, durable, wear resistance, suitable for long term use. 4、Easy to Install: Comes with a compact size and a light weight as well, the easy installation can be quickly completed. 5、Ideal Replacement: These plastic sewing coil claws can be easily installed, ideal replacement for the old and damaged parts. Specification Item Type: Pulse Detector Material: PCB Optical Isolation Input Interface Compatible Level: 5-24V Level Input Current: Greater Than or Equal to 4MA Frequency: 1HZ to 100HZ Waveform Duty Cycle PWM: 5% to 95% Package List 1 x Pulse Detector