DZS Elec 15PCS 35mm Piezo Disc Transducer Contact Microphone Trigger Sound Sensor with 4 Inches Wires for Acoustic Instrument

Specification
Plate Subject material: Brass.
Resonant Frequency: 1.8 +/- 0.3 KHz.
Resonant Impedance: not up to or equal to 300 Ohms.
Static Capacitance: 50000PF +/- 30%.
Storage Temop:-30 level Celsius-+70 level Celsius.
External Diameter: 35mm / 1.38 Inch.
Within Diameter: 24mm / 0.94 Inch.
Lead Period: 10cm /3.94 Inch.
Bundle Contents: 15 PCS.
Appropriate for DIY projects, contact microphones, cigar field guitar pickups, touch sensors, drum triggers, homemade audio system, buzzers, and so on.

Plate Subject material: Brass.Resonant Frequency: 1.8 +/- 0.3 KHz.
Resonant Impedance: not up to or equal to 300 Ohms .Static Capacitance: 50000PF +/- 30%.
Lead Period: 10cm /3.94 Inch.
Bundle Contents: 15 PCS.
Appropriate for DIY projects, contact microphones, cigar field guitar pickups, touch sensors, drum triggers, homemade audio system, buzzers, and so on.