More powerful sensor in accordance with the European regulation n°2015-1000. Allows you to measure and be notified when the CO2 level is too high, and that you need to ventilate the room. Ideal in health institutions or medical practices. Data logging. Visual and audible alarm. Temperature and humidity display. Backlighting. NDIR sensor. Dimensions: 11 x 11 x 6 cm. Rechargeable Lithium battery (USB cable supplied). 2 years warranty.