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Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer.
- Type: Piezo electric
- Outer Disc Diameter: ~27mm
- Ceramic Disc Diameter: ~21mm
- Thickness: ~0.45MM
