Piezo Buzzer and Vibration Sensor – 20mm

This 20mm Piezo Buzzer and Vibration Sensor is a versatile component that can both generate sound and detect vibrations or knocks. It is widely used in DIY electronics, alarm systems, and interactive projects. When used as a buzzer, it produces clear audible tones, and when used as a sensor, it can detect taps, shocks, or vibrations. Its compact size and simple interface make it ideal for Arduino, Raspberry Pi, and other microcontroller-based applications.

Specifications

• Type: Piezoelectric Buzzer / Vibration Sensor
• Diameter: 20 mm
• Operating Voltage: 3V – 12V (for buzzer function)
• Output: Analog signal (as vibration sensor)
• Material: Piezo ceramic disc with metal backing
• Sensitivity: High sensitivity to vibration and shock
• Mounting: Easy to integrate into circuits
• Compatibility: Arduino, Raspberry Pi, and other microcontrollers

Features

• Dual function: sound generation and vibration detection
• Compact 20mm size for easy integration
• High sensitivity for detecting knocks and movements
• Low power consumption
• Simple interface for quick prototyping
• Durable and reliable design
• Ideal for alarms, knock sensors, and interactive electronics projects