BRK First Alert 9120BFF Smoke Detector, Hardwired with Battery Backup, 1-Pack

About this item

• Connects to other compatible BRK or first alert smoke detectors, enabling all alarms to sound upon detecting smoke.
• Keep your family safe with this hardwired smoke alarm the battery backup means constant monitoring, even if there's a power failure
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• 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
• Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
• Rigorously tested to meet UL standards120 volt AC power with 9V battery backup to keep alarm functioning during power outage
• Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm
• 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)