1, using SW-420 normally closed type vibration sensor.
2, the comparator output signal clean waveform is good, driving ability,>15mA
3, working voltage 3.3V-5V
4, Output format: Digital switching output (0 and 1)
5, with bolt holes for easy installation
6, small plate PCB size: 3.2cm x 1.4cm
7, using a wide voltage LM393 comparator