First Alert 9120B6CP Hard Wired Smoke Alarm with Battery Backup (6-Pack)

First Alert's series of 120VAC hardwired smoke alarms with battery backups works exceptionally well in detecting flaming fires. Capable of wiring directly into your home's electrical system, these alarms feature a near effortless installation process. Alarms come equipped with a mute button that serves the dual purpose of quickly silencing your alarm as well as testing its function. First Alert's series of 120VAC hardwired smoke alarms with battery backups also comes equipped with an EZ access battery door that removes the hassle and burden of collecting your alarm from the ceiling and replacing its batteries. The combination of a battery backup that provides optimal protection in the event of a power outage and an increased emphasis on the unit's 85d output establish the ultimate in peace of mind.

• 120-volt AC interconnectable (with maximum 18 compatible devices)
• Latching alarm indicator, which automatically identifies the unit that initiated the alarm
• Smart technology to reduce nuisance alarms
• 9-volt battery backup for peace of mind during power malfunction
• Ionization smoke-sensing technology