First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector

Keep your family safe with this easy-to-use plug-in carbon monoxide alarm; it works with any standard outlet and also has a battery backup for continuous monitoring of carbon monoxide levels even if there’s a power failure. Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels no matter where the detector is placed in the room. Simple to use with a single test/silence button; a loud 85-decibel alarm sounds when carbon monoxide levels reach dangerous levels. To ensure complete protection make sure to place one on each level of your home and in each bedroom. All First Alert CO alarms are rigorously tested to meet UL standards. Plugs into any standard 120-volt AC outlet with no additional mounting needed. Item length is 3.4 inch item width is 1.38 inch and item height is 5 inch.