first alert smoke detector, photoelectric and ionized alarm | hardwired with battery backup, brk 3120b

brk smoke alarm 3120b

Hardwired alarm includes battery backup for power outages Photoelectric and ionization sensors provide comprehensive fire detection A single button makes alarm easy to test monthly or silence during a false alarm. Temperature Range: 40°F (4°C) to 100°F (38°C) Two latching features help indicate a low battery or the originating alarm in a system Optipath 360 patented technology provides 360 degrees of access to the smoke alarm. Emits T3 Pattern Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018) Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety