The Sewi KNX AQS/TH-D sensors for the KNX bus system measure the CO2 concentration in the room. They also measure the temperature, humidity and air pressure and calculate the dew point. The sensor can issue a warning to the bus as soon as the comfort zone according to DIN 1946 is left. The indoor sensors can receive external measured values via the bus and process them with their 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) or heating/cooling (according to temperature). Models: No. 70397 Sewi KNX AQS/TH-D sensor for CO2 temperature humidity pressure white No. 70697 Sewi KNX AQS/TH-D sensor for CO2 temperature humidity pressure jet black
