The First Alert CO605 Plug-In Carbon Monoxide Detector helps protect your family with an electrochemical sensor and an 85-decibel alarm, and easily plugs into any standard outlet with no additional mounting necessary. It also includes a battery backup, so CO is monitored even if there's a power failure. One button silences any nuisance alarms, and also tests detector functions. And an end-of-life signal enhances your safety by letting you know when it's time to replace the unit. Keep your family safer by installing units on multiple levels and in each bedroom.• Dimensions (Overall): 3.38 Inches (H) x 4.87 Inches (W) x 2.23 Inches (D) • Weight: .51 Pounds • Package Quantity: 1 • Requires Hardwired Installation: No • Battery: 1 9-Volt Alkaline, Required, Included • Warranty: 7 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869

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First Alert CO605 Plug-in Carbon Monoxide Detector with Battery Backup: 9-Volt Alkaline, No Hardwired Installation Needed

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