The "poor man's" accelerometer/motion sensor! These spring-vibration switches are medium sensitivity non-directional vibration induced trigger switches. Inside is a medium hardness 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!
- Maximum Operating Temperature: 260°C ± 10°C
- Contact Time: 2 - 2.5ms
- Diameter: 5mm / 0.2"
- Height (w/ pins): 23mm / 0.9"
- Height (w/o pins): 11mm / 0.4"
- Weight: 0.2g
Vibration Sensor Switch - Medium 
- Brand: Adafruit
- Product Code: ADA-2384
- Reward Points: 2
- Availability: 3
- Ex Tax: £2.38
- Price in reward points: 100