ITEM NAME:Normally Open SW-18015P Shock Sensor Module Vibration Sensor Alarm Module #gib Store Home Promotion Hot Item Add to Fav.Comparator output, with clean signal, good waveform, strong driving ability, more than 15A. Output Form: Digital Switch Output (0 and 1). 1 x Shock Sensor Module. Connect VCC and GND, module power indicator will be on.