BRK Hard-Wired w/Battery Back-up Ionization Smoke/Fire Detector 1 pk

Hardwired smoke detectors are wired directly into your homes electrical system. Detector includes battery backup and mute button. Battery backup ensures alarm works even during power outages. Mute feature silences nuisance alarms from cooking smoke or shower steam and single button tests alarm functions. Easy access drawer for battery: no need to take down alarm from ceiling to change battery. Interconnects with up to 12 other First Alert or BRK hardwired alarms. 10-year limited warranty. Meets UL smoke detector standards.120-volt hardwired smoke alarm wires directly into your home’s electrical system,Includes adapter plugs that eliminate the need for re-wiring if you are replacing an existing, non-First Alert branded detector,Ionization smoke sensor reliably detects particles from fast-flaming fires,Gasket-less mount system for hassle-free installation,Easy-to-access battery drawer; 9-volt battery included,Can integrate with up to 12 other First Alert or BRK hardwired smoke detectors,Also available in an 18 Pk, Ace #5006252