First Alert AC Hardwired 120-Volt Smoke Detector 9120BP

This hardwired smoke detector wires directly into your homes electrical system. The detector includes battery backup to ensure the alarm works even during power outages, and a mute button to silence nuisance alarms from cooking smoke or shower steam. The alarm has an easy access drawer for battery changes - no need to take down alarm from ceiling to change battery. Interconnects with up to 12 other First Alert or BRK hardwired alarms.

• Hardwired ionization smoke alarm with 9-volt battery back-up
• Battery back-up provides consistent protection for added safety during power outages
• Smart technology helps to reduce the number of nuisance alarms
• Latching alarm indicator remembers which unit initiated an alarm
• Perfect mount allows for easy alignment of alarm
• Single button test/silence helps to ensure your alarm is working properly
• Interconnects with up to 12 other First Alert or BRK hardwired alarms