Piezoelectric sensor / buzzer 20 mm diameter with wire set

A universal 20 mm piezoelectric element designed for use as a sound emitter (buzzer) or as a sensitive vibration and shock sensor. The construction consists of a durable brass plate with a sputtered piezoceramic layer, to which flexible wires are securely soldered for convenient installation. Thanks to the direct and inverse piezoelectric effects, the component efficiently converts electrical signals into sound vibrations and converts mechanical shocks into electrical pulses. Features: Product type: piezoelectric transducer / sound emitter / vibration sensor (Piezo Element / Buzzer / Sensor) Specifications: 20 mm diameter brass disc, built-in piezoceramic plate, pre-soldered flexible wires (red and black), high sensitivity Purpose: generating sound signals (buzzer), building shock/vibration sensors, electronic drum instruments, use in DIY projects and security systems