Home / Key Holders / Active Piezo Buzzer 3V To 12V Active Piezo Buzzer 3V To 12V$ 0.10 Add to cart Category: Active Piezo Buzzer with built-in oscillator. Easy to use for alarms, Arduino projects, and electronic indicators. Related products Arduino RPM Rotational Speed Measuring Sensor ModuleRead more Arduino TM1637 4-Digit 7 Segment Display ModuleAdd to cart ACS712 30A Current Sensor ModuleAdd to cart MPU-9250 6-Axis Gyroscope & Accelerometer Module – Arduino, ESP32 & IoT CompatibleRead more