9 VDC Battery Operated Carbon Monoxide (CO) Alarm

• The detector features a single test/silence button for efficient testing.
• The battery-operated detector is portable.
• A loud 85 decibel alarm sounds when CO levels are detected
• The CO detector alerts you to carbon monoxide

• Operating battery: 9 VDC
• Sound level: 85 dB at 3 m
• Sensor Type: Electrochemical
• Weight: 317.5 g
• Dimensions: 3.8 x 12.7 x 8.6 cm

The First Alert® CO400 battery-operated carbon monoxide alarm uses 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 rise, a loud 85-decibel alarm alerts you to the threat.