Kidde 4MDCO 230v Mains Powered Digital Carbon Monoxide Alarm With Rechargeable Battery Back-Up

The Kidde 4MDCO is a dependable mains-powered carbon monoxide alarm designed for modern residential installations, including new builds, rewiring projects, and refurbishments. Powered by a 230V supply and supported by a rechargeable lithium back-up battery, it ensures continuous protection even during power interruptions.

With a 7-year sensor lifespan and warranty, this alarm offers long-term reliability and peace of mind. It is designed for ceiling installation and can be hard-wired for interlinking with compatible Kidde Firex smoke and heat alarms, enabling a fully integrated home safety system.

The 4MDCO features a clear digital display and LED indicators that provide real-time information on alarm status, power supply, and battery condition. It detects carbon monoxide at 30ppm sensitivity and emits a loud 85dB alarm when triggered, ensuring occupants are alerted promptly.

Additional user-friendly features include a test/reset button for routine maintenance and an end-of-life warning to indicate when replacement is required. Certified to BS EN 50291-1 and carrying both CE and Kitemark approvals, this alarm meets recognised safety standards for residential use.

• 230V mains powered with rechargeable lithium battery back-up

• 7-year sensor lifespan and manufacturer warranty

• Suitable for ceiling installation

• Hard-wire interlink capability with Kidde Firex smoke and heat alarms

• 30ppm CO detection sensitivity

• Loud 85dB audible alarm

• Digital display with LED status indicators

• Test/reset button for easy maintenance

• End-of-life warning notification

• CE marked and Kitemarked to BS EN 50291-1