Module directions for use:
1, product no vibration, vibration switch is closed on state, the output terminal output low level, the green light is lit;
2, product vibration, the vibration switch instantaneous disconnection, output the output high level, the green light is not bright;
3, 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

Package：
2 x SW-420 Motion Sensor Module Vibration Switch Alarm Sensor Module for Arduino