First Alert First Alert Co400 Battery-operated Carbon Monoxide Alarm, 85 Db

The First Alert CO400 is a battery-powered carbon monoxide detector that uses an electrochemical sensor to detect carbon monoxide you cannot see, smell, or taste. It continuously monitors your home's air and keeps working even during power outages, providing protection when you need it most.

The CO400 requires no hardwired installation or electrical outlet connection. Simply install one 9V replaceable battery and mount the unit on a wall using the included wall-mount kit. When carbon monoxide levels become elevated, a loud 85-decibel alarm alerts you to the danger.

Features and Benefits

• Electrochemical Sensor: Detects carbon monoxide with an internal sensor that lasts up to 5 years.
• Battery-Powered Operation: Runs on a single 9V replaceable battery, ensuring continuous protection even during power outages.
• Loud 85 dB Alarm: The audible alarm delivers a clear, urgent warning when carbon monoxide levels are too high.
• Test and Silence Button: A single convenient button lets you test the alarm's functionality and silence it when needed.
• Pull-Down Action Chart: Built-in guidance helps you understand what to do if an alarm sounds, enabling quick response during a carbon monoxide event.
• Wall-Mount Kit Included: The detector comes with mounting hardware for easy installation.

Specifications

• Brand: First Alert
• Model: CO400 (1039721)
• Power Source: One 9V replaceable battery
• Sensor Type: Electrochemical
• Sensor Life: Up to 5 years
• Alarm Level: 85 decibels
• Alarm Type: Audible
• Mounting: Wall mount (kit included)
• Detection Range: 10 feet