• 10-Year Sensor Life: Features a state-of-the-art electrochemical sensor that lasts a full decade, providing long-term protection against carbon monoxide.
• Easy Installation: Flexible mounting options allow you to wall-mount the unit or use it free-standing on a shelf; fits existing Kidde 5CO baseplates for a quick upgrade.
• Batteries Included: Comes supplied with 2 x AA alkaline batteries (Duracell), ensuring the unit is ready to protect your home straight out of the box.
• Loud 85dB Warning: Emits a piercing alarm pattern when CO is detected, combined with flashing Red LED indicators to alert you to danger immediately.
• Test & Reset Function: Simple one-button operation allows you to regularly test the alarm circuitry and silence nuisance alarms easily.
• Fully Certified Safety: Kitemarked and approved to BS EN 50291-1:2018 standards, making it suitable for use in homes, caravans, and boats.

Protect your family from the "silent killer" with the Kidde K5CO Carbon Monoxide Alarm. Designed to provide continuous monitoring of CO levels in your home, this compact and lightweight unit features the latest electrochemical sensing technology. Ideal for all living areas, the K5CO is a direct replacement for the older Kidde 5CO model and fits the existing baseplate for a hassle-free upgrade. Whether wall-mounted or left free-standing, this battery-operated CO detector ensures you are alerted to dangerous carbon monoxide leaks instantly with a loud 85dB alarm and clear LED status indicators. Fully certified to the latest British Standards (BS EN 50291-1:2018), this alarm offers a 10-year sensor life and a 7-year warranty, giving you a decade of peace of mind without the need for complex wiring.