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;Clearly structured ETS;Easy installation and mounting;Modern and planar design;Wall mounting;Party function;Extension of the value range of setpoints;Temperature control with up to 4 sensor values possible;Additional VAV controller;and much more,Black