BRK Interconnect Hardwire Smoke Alarm with Battery Backup Size:120 V the AUTO START feature automatically

the AUTO START feature automatically starts the motor on contact with drywall providing less noise between screws and 3 times longer run time

Seasoned with 100% natural vegetable oil

Stays charged for over a year

A high shank and high lift allow for plenty of working room

BRK Interconnect Hardwire Smoke Alarm with Battery Backup Size:120 V the AUTO START feature automaticallyDirect wire in with 9V battery backup. Hardwired with battery backup for protection during power outages. Perfect mount for easy installation. Mounting bracket keeps the alarm secure over a wide rotation range for ideal alignment. Latching alarm indicator, visually identifies unit that initiated alarm or low battery. Interconnects with most First Alert and BRK hardwired alarms. When one alarm sounds, all compatible alarms sound (up to 12 smoke alarms