First Alert Carbon Monoxide Gas Alarm CO400

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Manufacturer's Number: CO400
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Battery Operated Carbon Monoxide Alarm from First Alert with mute button to silence any nuisance alarms. Single button also tests alarm functions. Utilizes electrochemical sensor for increased accuracy. Easy access to the battery. 5-year limited warranty. Meets UL standards.
WARNING: This product may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit