Industry-Electronics 4duino Vibrations Schalter Product Model: OKY3222-1 DC 3-5V Vibration Switch Single-Channel Vibration Sensor Module For Arduino Product Description 1.Model:N/A. 2.Color:Red. 3.Material:FR4. With signal output instructions. Single-channel signal output. With mounting holes for fixed installation. Switch output circuit board, can be directly the microcontroller IO port. Working voltage: DC 3-5V. Usage: teaching experiment demonstration, product development and so on.