Kidde 10 Year Carbon Monoxide Alarm Digital -7DCOC Kidde 7DCOC 10 Year Carbon Monoxide Alarm with digital display. The display shows live CO levels in the environment and with the latest sensitive sensor technology provides ideal protection against carbon monoxide leaks. - Continuously monitors for the presence of deadly Carbon Monoxide in the home providing a constant protection against its effects - Digital display that continuously displays CO levels detected - Battery operated detector (batteries included) - Test / Reset button and LED to allow simple verification of alarm operation - Loud 85db piercing alarm function - Sensitivity: 30ppm (parts per million) CO gas - 10 year warranty - Kitemarked to BSEN 50291:2010 and CE Marked - Supplied with base plate for simple installation, or can be free standing