First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack

Introducing the revolutionary BRK 9120 series smoke alarms that have been redesigned from the ground up. They install faster, perform better, and are even smarter than before. All of these improvements help reduce nuisance alarms and save you money and time. BRK Electronics smoke alarms are designed to be easy to install, easy to maintain, and quality-engineered for years of virtually maintenance-free service. The 9120B AC-powered smoke alarm with battery backup includes these features: Ionization sensor which helps detect fast flaming fires that consume combustible materials all of a sudden. 120-Volt AC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm. Latching alarm indicator which automatically identifies which unit initiated the alarm. Smart technology to reduce nuisance alarms. 9-Volt battery backup for peace of mind all through power malfunction. Single test/silence button which both silences a non-threatening alarm or low battery warning and lets you test the unit’s functionality. Perfect mount system including a gasketless base for easy installation and new mounting bracket that keeps the alarm protected over a wide rotation range to allow for perfect alignment. Mounting bracket lock for tamper resistance. Dust cover to keep unit clean all through construction. 10-year limited. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.

Keep your family protected with this 3 pack of hardwired smoke alarms; the battery backup means constant monitoring, despite the fact that there’s a power failure
Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm
To ensure complete protection be sure to place one on each level of your home and in each bedroom
Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected
Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy
Rigorously tested to meet UL standards
Faster turnarounds on job sites with the easy to install, most trusted alarms in home safety
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 Consider Survey in February 2018)