First Alert CO400 Battery Operated Electrochemical Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide. This carbon monoxide detector is battery operated, making it portable and easy to use, even in the event of a power outage. When carbon monoxide levels become elevated, a loud 85-decibel alarm alerts you to the threat. 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. Simple set up - 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.

Features

• Electrochemical sensor
• Battery powered, keeps monitoring even during a power outage
• Includes a permanent internal sensor lasts up to five years
• 85-decibel horn sounds if carbon monoxide levels are too high, and a pull-down action chart on each detector offers guidance on what to do if an alarm sounds
• Test/silence button that silences the alarm and allows you to test its functionality
• No installation or outlet is required, and an optional wall mount is included
• 7 Yr. Limited Warranty
• UL Listed

Specifications

• Color: WHITE
• Type: Battery Operated
• Dimensions: 5 In. W. x 1-1/2 In. H. x 3-2/5 In. L.
• Warranty: 7 Yr. Limited
• Certification: UL Listed
• Battery Type: 9V
• Batteries Included: Yes
• Battery Life: Varies According To Battery Life
• Sensor Type: Electrochemical
• Alarm Type: Carbon Monoxide
• Power Source: Battery Operated
• Width (In.): 3.4
• Height (In.): 1.5
• Length (In.): 5
• Noise Rating (dB): 85