Internally driven piezo buzzer,Top sound

Resonance Frequency :               2.9±0.5KHz
Operating Voltage:                     10-28VDC
Rated Voltage:                           12VDC
Current Consumption:                30mA Max.at Rated Voltage
Sound Pressure Level:                90dB Min at Rated Voltage 
Tone Nature :                            Continuous+Fast Pulse
Operating Temp:                        -40~+85°C
Weight:                                     33g
Housing Material:                       ABS

Size: