This product is featured with good outlook, excellent performance, and with simple installation, reasonable structure, easy operation as well as marvelous acoustic effect, so it is widely used in factory, school, building, traffic, security, amusement area, etc., and the alarming buzzer can be in functioning in case of activation.

Function principle: The inset high-rate motor with high speed, once it is electrified, the wheel will driving. The impeller turning fleetly, and make for sounding strident voice to make purpose of alarm.
Working voltage:DC12V 24V / AC110V 230V
Loading power:180W / 120W
Alarming area:500M
Acoustic effect:110dB-120dB