1.Normally closed type vibration sensor SW-420.

2.The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 ma.

3.The working voltage of 3.3V to 5V.

4.Output form: digital switch output (0 and 1).

5.Has a fixed bolt hole, convenient installation.

6.Small board PCB size: 3.2cm x 1.4cm.

7.Use the LM393 wide voltage comparator.

8.Used to trigger the effect of various vibration, theft alarm, intelligent car, earthquake alarm, motorcycle alarm, etc.

9.This module is compared with the normally open type vibration sensor module, vibration trigger for longer periods of time, can drive the relay.