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Wirelessly interconnect your smoke alarms so they communicate with each other, 120VAC hardwired wireless interconnect smoke alarm with battery backup.
FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST , White - Smoke Detectors
First Alert SCO501CN-3ST Wireless Voice Alert Smoke and Carbon Monoxide Alarm
First Alert SA521CN-3ST Wireless Interconnect Hardwired Smoke Alarm
BRK First Alert - SA521CN-3ST Interconnected Hardwire Wireless Smoke A– Wholesale Home
First Alert HD6135FB BRK Brands Hardwired Heat Alarm with Battery Backup
Wireless Interconnect Carbon Monoxide Alarm With Voice Alert - CO511B
FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST , White - Smoke Detectors
First Alert SA521CN-3ST Wireless Interconnect Hardwired Smoke Alarm
First Alert Wireless Interconnect Battery Smoke Alarm - 2 Pack, SA501CN2-3ST
First Alert SA521CN-3ST Wireless Interconnect Hardwired Smoke Alarm
First Alert SA521CN-3ST Wireless Interconnect Hardwired Smoke Alarm