First Alert 1039718/CO400 Basic Battery-Operated Carbon Monoxide Alarm, 9V

The First Alert CO400 Carbon Monoxide Alarm utilizes an 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-decibel alarm alerts you to the threat.

• CO detector alerts you to carbon monoxide
• Electrochemical CO sensor is most accurate technology available
• Battery-operated design works almost anywhere
• Loud 85-decibel alarm sounds when CO levels are elevated
• Single test/silence button for simple operation
• Mute button, mutes unnecessary alarms. also tests alarm function with same button
• Low battery signal mute, quiets low battery signal for up to 8 hours
• Electrochemical sensor, most accurate technology available for detecting carbon monoxide* *compared to other common sensing technologies
• End of life timer, alarm chirps when it is time to replace it
• 9V battery included
• Meets UL2034 standard
• Emits T3 Pattern
• The First Alert Carbon Monoxide Alarm uses an advanced electrochemical CO sensor to detect elevated carbon monoxide levels. When CO is detected, the carbon monoxide detector sounds an alarm to warn you of the threat.
• When carbon monoxide levels rise, the carbon monoxide detector sounds an 85-decibel siren that is designed to wake even the soundest of sleepers. A low-battery light and alarm alert you when battery power is running low, and an end-of-life timer lets you know when the device should be replaced. Each CO detector lasts approximately five years.
• The First Alert Carbon Monoxide Alarm is easy to set up. Simply insert the battery, and the CO detector will start to monitor your space for carbon monoxide. There are no complicated displays or settings to navigate–a single button silences the alarm and tests the CO detector. A pull-down action chart instructs you of what to do if the CO alarm goes off.
• One on every level of the home and one in each sleeping area.

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