Digital long-life carbon monoxide (CO) detector powered by a long-life sealed battery. Designed to accurately measure low levels of CO. Features an advanced electrochemical sensor calibrated and tested in CO gas. Features LCD which illuminates and in various colours depending on event type. Advanced diagnostics support via cable. Ideal in any room that contains a fuel burning burning appliance e.g gas hob, open fire, boiler. Can be wall-mounted or freestanding. Suitable for home and / or travel use. Standalone 10-Year Sealed Tamperproof Lithium Integrated Battery 85dBA Alarm at 3m Test/Hush Button Advanced Electrochemical Sensor LCD Illumination Wall-Mounted or Freestanding Portable Standalone 10-Year Sealed Tamperproof Lithium Integrated Battery 85dBA Alarm at 3m Test/Hush Button Advanced Electrochemical Sensor LCD Illumination Wall-Mounted or Freestanding Portable