Detection of air quality;(CO2-concentration, rel. humidity, temperature);CO2-sensor (Measuring range 390...5.000 ppm air pressure compensated);CO2-value is atmospheric pressure compensated;Sensors for CO2-, temperature, humidity and atmospheric pressure measurement;Temperature sensor (Measuring range 0...+50°C);Humidity sensor (Measuring range 0...100 % rel. humidity);Humidity comparator function;5 binary and analogue inputs (e.g. for connecting an external temperature sensor);Clearly structured ETS;Easy installation and mounting;Modern design;Flush mounting;Fits in common switch range (55 x 55 mm);manual adjustment of set-point temperature via touch slider (adjustment range ± 3°, increment 0,5°);CO2 / rH - monitor,White