Qunqi SW-420 Motion Sensor Module for Arduino EK125 Used to trigger the effect of various vibration, theft alarm, intelligent car, earthquake alarm, motorcycle alarm, etc This module is compared with the normally open type vibration sensor module, vibration trigger for longer periods of time, can drive the relay module Used to trigger the effect of various vibration, theft alarm, intelligent car, earthquake alarm, motorcycle alarm operating voltage 3.3V-5V,Output form: digital switch output (0 and 1) Size:3.2cm x 1.4cm,Has a fixed bolt hole, convenient installation Product no vibration, vibration switch is closed on state, the output terminal output low level, the green light is lit Product vibration, the vibration switch instantaneous disconnection, output the output high level, the green light is not bright Output can be directly connected to microcontroller, through single chip microcomputer to detect the high and low level, thus to detect whether there is a vibration environment, call the police 1x SW-420 Module