siren horn 30watt 110 dB alarm sound siren horn 30watt 110 dB alarm sound Can be used with infrared wireless alarm, telephone dialing alarm, automobile anti-theft alarm and other supporting. The super loudness alarm sound can rise to deter thieves. In an emergency, can be given out call the police of sound emergency for help or scare off, electricity will ring, power off not ring, especially suitable for emergency alarm, can be installed in any room, add a switch button, you can make an emergency alarm, meet the gunman or bad or earthquake fire emergency, such as conditions of use. Compatible with alarm host band output 12 v voltage.
