The DC220V emergencies Security alarm delivers 120dB piercing alarms for , theft , and quakes defense , featuring shock resistant ABS / metal construction and direct 220V power compatibility Integrates seamlessly with existing systems like detectors and door sensors , creating a layered defense internet against emergencies through its expandable connectivity Designed for versatile deployment in apartments , offices , shopping centers , and residential buildings requiring fast hearable security warnings Perfect for homeowners , business operators , and property managers seeking stable emergencies alerts without professional installation hassles Engineered with strong ABS and metal components , this anti theft alarm withstands harsh conditions while offering tool easy installation through standard 220V outlets