First Alert Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO605, White, 1-Pack

Additional Details from the Manufacturer

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More features

• 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. Low battery signal mute, quiets low battery signal for upto 8 hours
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
• All first alert CO alarms are rigorously tested to meet UL standards. Item length is 3.4 inches , item width is 1.38 inches and item height is 5 inches
• Loud 85-decibel alarm sounds when CO levels are elevated