Accurate and responsive equipped with an advanced Figaro electrochemical CO sensor and a powerful ST chipset, the X-Sense carbon monoxide detector instantly and accurately detects the concentration levels of CO, an invisible, deadly gas, while minimising false alarms. It is designed to warn you of a CO hazard as early as possible, with a loud 85 dB alarm and a fast flashing red LED indicator. 10 years of round-the-clock protection with 3 replaceable 1.5 V AA batteries and a sensor life of 10 years, this CO detector offers the best round-the-clock protection, even during power outages. A low battery warning lets you know when the batteries need to be replaced and an end-of-life warning lets you know when it's time to replace the device. Flexible and easy installation: No need to worry about wires or sockets, our battery-powered CO detector comes with screws and plugs so it can be installed quickly and easily anywhere. Large LCD display and high sensitivity clearly show battery life and real-time CO levels from the ambient air, with an updated reading every 10 seconds. It responds to various CO thresholds, with the lowest alarm threshold at 30 ppm, to ensure your optimum protection from carbon monoxide.