First Alert 1039741 Carbon Monoxide Alarm, 85 dB, Alarm: Audible, Electrochemical Sensor Electrical Wire Lawns thrive in soil with

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Maximum Cutting Depth at 45 degrees: 2-1/4 in

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Outstanding performance for any champion and a healthy

First Alert 1039741 Carbon Monoxide Alarm, 85 dB, Alarm: Audible, Electrochemical Sensor Electrical Wire Lawns thrive in soil withThe First Alert CO400 carbon monoxide alarm utilizes a electrochemical carbon monoxide sensor that lasts for up to five years to detect carbon monoxide. This carbon monoxide detector is battery powered, making it portable and easy to use anywhere, even in the event of a power outage. When carbon monoxide levels become elevated, a loud 85 dB alarm alerts you to the threat.