First Alert Smoke Alarm (Wired-in with Battery Backup)

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First Alert's SA9120BCN Smoke alarm with battery back-up uses ionization sensing technology and sounds an 85-decibel alarm. A power indicator on the unit confirms that it is receiving power and a silence/test button checks all alarm functions and silences a non-threatening alarm. If the wired-in power is malfunctioning, the 9-volt back-up battery powers the unit. The battery is easily installed in a pivoting side load battery compartment. The universal mounting brackets are designed for easy installation and help to hide drywall cutouts. The mounting system includes a gasketless base and mounting jacket. The alarm includes quick plug-in connectors for easy installation and can be interconnected with up to 12 compatible smoke alarms and 6 additional units. If one smoke alarm in the series triggers an alarm, they will all sound. When the alarms sound, the latching alarm indicator identifies which unit initiated the alarm, alerting you to the area of danger. AC-powered smoke alarms must be installed in accordance with all local electrical codes, and should only be installed by a qualified electrician. 10-year limited warranty. Includes: (1) 9-volt battery

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Item# : 005W026365110001
Model # : SA9120BCN
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