First Alert Wireless Interconnect Hardwired Smoke Alarm
The First Alert Interconnected Smoke Alarm allows owners to create an interconnected fire alarm system without the cost and hassle of wiring. Use this smoke detector to replace an existing hardwired smoke alarm and then install additional First Alert Wireless alarms for an interconnected safety network (additional alarms sold separately). This hardwired smoke detector can connect and communicate with up to 18 compatible alarms, so when one alarm is triggered, the entire system reacts. An integrated battery backup ensures the smoke alarm continues to work even during power outages.
Wireless inter-connectivity, wirelessly connect up to 18 interconnect alarms in your home and when one sounds, they all sound for increased whole-home protection
120v ac hardwired, easily replace one existing hardwired alarm with First Alert SA521 alarm and then add Wireless Interconnect battery operated alarms to connect wireless alarms with hardwired alarms–when one sounds, they all sound
Battery backup provides consistent protection for added safety during power outages
Photoelectric smoke sensing provides optimal protection from smoldering fires, while reducing false alarms like those caused by cooking fires and shower steam
Mute button silences unnecessary alarms immediately
Eco-friendly, completely recyclable as an electronic device
EZ access battery door, no need to remove alarm from ceiling to change batter
Optional theft-prevention lock, when activated, batteries and/or alarm cannot be removed without proper tools
Specifications
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