The buzzer have good characters like small cubage, low wastage and high voice pressure, an ideal item for industrial use.

Specification:
Color: Black
Rated Voltage: DC 12V
Working Voltage: DC 3-24V
Rated Current: 15mA at 12VDC
Sound Output: 85dB at 12VDC/300mm
Resonant frequency: 2.5±0.5KHZ
Operating temperature: -20 to 45℃
Storage temperature: -20 to 60℃
Module Size: 30 X 15mm/1.18 X 0.59inch(D*T)

Package includes:
5 x High-decibel Electronic Buzzer