First Alert BRK Brands Hardwired Ionization Smoke Alarm

The First Alert 9120LBL Hardwired Interconnected Smoke Alarm with Lithium Battery-Backup is a great choice when it comes to affordable smoke alarms.
In the event of a power outage, this smoke alarm is equipped with a 10 year lithium battery back-up.
The First Alert 9120LBL Hardwired Smoke Alarm with Battery Backup comes equipped with an ultra-reliable ionization sensor to provide the earliest possible warning of a fast-flaming fire.
The sensor is optimized to detect flaming fires, such as those caused by paper, kitchen grease, and other fast-combusting materials.
This smoke alarm also implements Smart Technology to drastically reduce the number of nuisance alarms triggered.

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