Item Type: Vibration Switch Sensor Module_x000D_ Working Voltage: 5.0V (DC)_x000D_ Interface Type: AD/DO_x000D_ AO: Analog Signal Output_x000D_ DO: TTL Level Output_x000D_ Working Temperature: -10 C ~ +70 C_x000D_ Size: Approx. 20 x 20mm / 0.8 x 0.8in_x000D_ Weight: 4.5 g / 0.2 oz(approx.)_x000D_ Test Method and Wiring:_x000D_ G (GND):: Power ground_x000D_ V (VCC): Operating voltage 5V (DC)_x000D_ ADO: Analog signal output_x000D_ According to the vibration intension, the higher the output voltage, the higher the vibration amplitude sensitivity can be adjusted by the potentiometer (the left turn sensitivity is low, the right turn sensitivity is high). The high sensitivity output can be adjusted to respond with a mouth blow or a tap with a hand._x000D_ DO: TTL level output. Output signal LED indication. TTL output valid signal is high level, output control power