The Sewi KNX AQS/TH-D L-Pr sensor for the KNX bus system detects brightness and the presence of people in the room. It measures the CO2 concentration, temperature, humidity and air pressure and calculates the dew point. The indoor sensor can receive external values of temperature, humidity and CO2 concentration via the bus and process them with its own data to create total values (mixed values, e.g. room average). All measured values can be used to control limit-dependent switching outputs. The states can be linked via AND logic gates and OR logic gates. Multifunctional modules change input data as required by calculations, querying a condition or converting the data point type. In addition, an integrated manipulated variable comparator can compare and output values received via communication objects. Integrated PI controllers control ventilation (according to humidity or CO2 concentration) and heating/cooling (according to temperature). The Sewi KNX AQS/TH-D L-Pr can issue a warning to the bus as soon as the comfort zone according to DIN 1946 is left. Models: No. 70399 Sewi KNX AQS/TH-D L-Pr sensor for CO2 temperature humidity pressure brightness presence white No. 70699 Sewi KNX AQS/TH-D L-Pr sensor for CO2 temperature humidity pressure brightness presence jet black
