Small Enclosed Piezo w/Wires, Each

Details

This Small (14Mm Diameter) Piezo Element Is Nicely Enclosed So You Can Attach Easily. Piezo Elements Convert Vibration To Voltage Or Voltage To Vibration. That Means You Can Use This As A Buzzer For Making Beeps, Tones, And Alerts, And You Can Use It As A Sensor To Detect Fast Movements Like Knocks. You Can Also Use It To Make A Drum/Crash Sensor Under A Drum Pad.