High decibel 150dB wire alarm alarm with double tone alerts and retardant ABS shell ensures powerful security notifications for home and property protections Installs discreetly in entryways, warehouse, or high risk zones to deter break and alert occupants during incidents small 4.7x7.7x9inchinch design combines durability with 30W output for continuous operate in residential/commercial alarm systems Features 12VDC operate , flexible wall/balconies mounting option, and compatibility with detectors alarms for integrated security systems Ideal for homeowners, business operators, and security professional search stable perimeter defense against intrusions or emergencies, Manufacturer: Dezzhou