BRK Interconnect Hardwire Smoke Alarm with Battery Backup Size:120 V nsf cl-r certified for use

nsf cl-r certified for use in hot water systems where chlorinated 140 degree Fahrenheit hot water can be constantly re-circulated

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BRK Interconnect Hardwire Smoke Alarm with Battery Backup Size:120 V nsf cl-r certified for useDirect 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