Piezo disc transducer contact microphone trigger sound sensor is made of brass and ceramic, low power consumption and high sensitivity, guarantee long-term use. These piezo elements are pre-wired for easy installation and are ideal for acoustic instrument pickups, foot stompers, contact microphones and other home-made instruments for sound vibration detection.

Specification:
Product name: 10 pcs piezo disc transducer contact microphone trigger sound sensor.
Operating frequency: 6.0 ± 0.7 KHz, product capacitance: 33000 ± 30% PF.
Size: Diameter: 41mm / 1.61 inch, inner diameter: 25 mm / 0.98inch.
Material: Brass and ceramic.
Color: Yellow.

You will receive:
10 pcs piezo disc transducer contact microphone trigger sound sensor.

Notes:
1.Manual measurement, please allow slight errors on size.
2.The color may exist slight difference due to different screen displays.