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First Alert Hardwire Carbon Monoxide Alarm
First Alert hardwire carbon monoxide detector with battery back up. Electrochemical sensor detects carbon monoxide gas and measures the concentration and sounds a loud 85dB alarm when potentially harmful level is reached. 2 silent features; unwanted alarms and low battery silence. Instant test/reset button. 9 volt battery included. Recommended for professional installation only. UL (Underwriter's Laboratories) listed. White.
An EnviroLINK Product: This product meets the standards for energy efficiency and reduced impact on the environment.