Alba LED Wall Clock With CO2 Level Temperature and Humidity Sensor Black - HORDGTL CO2 UKThe HORDGTL CO2 clock fits perfectly in all your office spaces to show you the CO2 level, humidity and temperature of the room. The HORDGTL CO2 clock will indicate the CO2 level thanks to its NDIR sensor (non dispersive infrared sensor). It will instantly inform you of the indoor air quality and the actions to be taken in a room (ventilation of the room). An audible alarm, which can be personalised, is provided according to the desired CO2 detection