Size: 41 * 15 * 12.5mm 
The main chip: LM393, vibration probes 
Operating voltage: DC 3-5V 
main feature: 
1, having a signal output indication; 
2, with analog and TTL level signal output signal output; 
3, the output valid signal is high, the light goes off; 
4, sensitivity adjustable (fine tuning); 
5, wide vibration detection range, non-directional; 
6, with mounting holes, firmware installation flexible and convenient. 
Applications: can be used in anti-theft devices, electronic locks, mechanical equipment vibration detection range bull's-eye counts detection test vibration of the occasion;