The "poor man's" accelerometer/motion sensor! These spring-vibration switches are high sensitivity non-directional vibration induced trigger switches. Inside is a very soft spring coiled around a long metal pin. When the switch is moved, the spring touches the center pole to make contact. So, when there's motion, the two pins will act like a closed switch. When everything is still, the switch is open. Great for basic projects and wearables!
Electrical parameters: - Maximum working voltage (Voltmax) : 12V - Maximum current (Imax) : less than 5mA - Open circuit resistance: more than 10m - On resistance: less than 5ohm - Ambient temperature: less than 100? - Life expectancy: 500000 times