First Alert Hardwired Smoke Alarm with Battery Backup, 3-pack

SKU: RC  1362286



Photoelectric smoke sensor. Wirelessly interconnect up to 18 alarms. 85-decibel alarm. EZ Access battery door. Mute button included. Hardwired with battery backup. Dimensions (L × W × H): 21.59 cm × 17.78 cm × 6.35 cm (8.50 in. × 7 in. × 2.50 in.). Weight: .37 kg (.83 lb.). 10 years, limited. SA520CNA

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