The vibration sensor module based on the vibration sensor SW-420 and Comparator LM393 is used to detect vibrations. The threshold can adjust using an on-board potentiometer. During no vibration, the sensor provides Logic Low and when the vibration is detected, the sensor provides Logic High.

Specifications:

Operating Voltage: 3.3V to 5V DC
Operating Current: 15mA
Using SW-420 normally closed type vibration sensor
LEDs indicating output and power
LM393 based design
Easy to use with Microcontrollers or even with normal Digital/Analog IC
With bolt holes for easy installation
Small, cheap and easily available