SW-420 Normally Closed Vibration Sensor Module for Alarm System DIY Smart Vehicle Robot Helicopter Airplane Aeroplane Boart Car. M.(5*1)

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This module features a highly sensitive vibration sensor and an on-board voltage comparator for producing a digital output signal.

When the vibration switch is under closed conduction state, the output signal is low and the green light is on. When the vibration switch is disconnected, the output signal is high and the green light is turned off.

It can be directly connected to a microcontroller for reading the output level and to easily determine the sensor state. The output of the sensor indicates whether vibration was detected in the environment.

The typical applications include theft alarms, earthquake alarms and more.


  • Model: SW-420
  • Operating Voltage: 3.3 V to 5 V
  • Current: >15 mA
  • Output Type: Digital Switch Output (0 and 1)
  • Uses the SW-420 normally closed vibration sensor module
  • Uses the LM393 comparator
  • Mounting hole for easy installation
  • PCB Size: 32 x 14 mm