• Features a built-in 10-year lithium battery to help protect your home for up to a decade of uninterrupted monitoring, even in a power outage
• Has a detection coverage area of 215–430 sq. ft (20–40 m²), and when smoke is detected, the fire alarm sounds a loud 85 dB siren that can be easily heard
• Automatically self-checks its battery and critical circuits every 60 seconds to ensure the smoke detector is functioning properly; gives low battery warning and error warning
• Slim and compact design to mount unobtrusively on a wall or ceiling; the simple design features a white finish that blends in with your home decor
• Includes a convenient test/silence button to ensure the battery-operated smoke detector is functioning properly, and to quickly mute any false alarms from cooking fumes or shower steam
• This smoke detector has a sealed lithium battery with a 10-year lifespan, so your home will be protected 24/7, even if the power goes out, and no more hassle of frequent battery replacement.

Shipping Note: Shipping to Alaska, Hawaii, PO Boxes, and APO addresses is not available for this item.

Warranty: 90 Day Woot Limited Warranty