1 The collision switch module outputs a low level voltage when there is collision, outputs high level voltage when there is no collision.
2 M3 mounting holes for easily install on the car.
3 Module size: 1.4cm*1.8cm
4 with indicator light, collision, light;no collision, light off.
VCC:3v-12v power supply
GND:connect with GND
OUT:high and low voltage output