First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack

Introducing the revolutionary BRK 9120 series smoke alarms which were 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 time and cash. BRK Electronics smoke alarms are designed to be easy to install, easy to handle, 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 also 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 over 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 gasket less base for simple 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 over construction. 10-Year limited.

6 pack of hardwired smoke alarms, includes battery backup for power outages
Tamper resistant locking pins, single button silence/test and loud 85Db alarm
120-Volt AC power with 9-volt battery backup (included) to keep alarm functioning all over power outage
Open mounting design for simple installation with side load battery compartment for quick replacement and interconnect in a position up to 18 units (12 smoke, 6 co/heat/relay)
10-Year limited
Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety