BRK Interconnect Hardwire Smoke Alarm with Battery Backup Size:120 V so it can move with

so it can move with ease around trees

grout lines

73″ W x 21

Hassel-Free Easy Installation: To facilitate hassle-free installation

BRK Interconnect Hardwire Smoke Alarm with Battery Backup Size:120 V so it can move withDirect 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