Warning Buzzer & Chime
10Pcs 3V 5V 12V Active Buzzer 12095 Piezo Magnetic Long Continous Beep Tone Alarm Ringer 12085 Passive 16R

Frequency: 2000HZ
Rated voltage (or working voltage): 5V or less
Rated current: 30mA
Weight: about 13g one
Voltage :3V 5V 12V
Diameter : 12mm ;
Spacing of the foot : 6.5mm ;
Height : 8.5mm