Active piezoelectric buzzerr, piezo alarm, module support DC 3V 12V 24V wide voltage power supply;
Piezo buzzer: Max
Voltage: DC 3-24V;
Max Current: 30mA;
Rated Voltage: 12V;; 15Pcs SFM-27 DC 3-24V Electronic Buzzer Alarm Sounder Continuous Sound Beep; Active piezo electronic buzzer module support DC 3-24V wide voltage power supply. It is a continuous Tone.;
Package Contain: 15x Buzzer