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SITERWELL Smoke Detector, Hardwired Photoelectric Smoke Alarm with DC 9V Backup Battery & Interconnected, Fire Alarm with Silence Button, GS517, 6 Packs
HARDWIRED SMOKE DETECTOR - Hardwired interconnected smoke alarm, can connect up to 12 alarms. It is more precise and stable than wireless interconnection. INTERCONNECTION TEST - If the fire detectors are interconnected, you only need to press one test button during the weekly test, and the rest can be tested at the same time. 9V BATTERY BACKUP - The fire alarm is powered by a 120V power and a 9V backup battery. The alarm battary will last for at least 1 year, providing protection in the event of a power outage.

Price is $77.00

Price: $76.99