Raum-Controller, Mischgas/Temperatur/Feuchte


  • Room controller with display and touch buttons
  • Heating control and ventilation control
  • glass surface
  • Integrated sensors

The Sensor KNX VOC/TH-UP Touch CH measures volatile organic compounds in the room air, temperature and humidity and calculates the dew point. The sensor can receive external measured values via the bus and process them with the own data to overall values (mixed values, e. g. room average). The KNX VOC/TH-UP Touch CH offers two push buttons that may be used for changing the ambient temperature (target value), for switching between operating modes or as free programmable bus push buttons. The KNX VOC/TH-UP Touch CH provides switching outputs with adjustable threshold values. The switching outputs and further communication objects can be linked by AND and OR logic gates. Additionally, an integrated actuating variable comparator can compare and output values that are received via communication objects. Integrated PI controllers allows for control of a ventilation (depending on VOC concentration and air humidity) and a heating/cooling system (depending on temperature). The KNX VOC/TH-UP Touch CH can emit a warning to the bus soon as the area of optimum comfort (according to DIN 1946) is left. The integrated display shows the own values and data received from the bus (e.g. date, time). The device is completed with a frame of the switching series installed in the building and thus merges with the interior.


No. 70970 KNX VOC/TH-UP Touch CH, pure white RAL 9010
No. 70971 KNX VOC/TH-UP Touch CH, jet black RAL 9005

Delivery without frame

  • Measurement of VOC (volatile organic compounds) in the air. In this process, an air quality value in CO2 equivalents is calculated via an algorithm from the sum signal of all compounds included in the mixed gas.
  • Measurement of temperature and air humidity (absolute and relative), calculation of the dew point
  • Mixed values from own measured values and external values (proportions can be set in percentage)
  • Display 1-3 rows (own values or values received from the bus) or display of temperature control (see Mode display and manual temperature controller)
  • 2 push buttons. Configuration as bus push button or for changing ambient temperature and switching between operating modes (see Change ambient temperature with the buttons)
  • PI controller for heating (one or two step) and cooling (one or two step) depending on temperature. Control according to separate target values or basic target temperature
  • PI controller for ventilation depending on humidity and VOC concentration: dehumidification/humidification (one step) or dehumidification (one or two step)
  • Threshold values can be adjusted per parameter or via communication objects: 3 × temperature, 2 × humidity, 4 × VOC
  • 4 AND and 4 OR logic gates with each 4 inputs. Every switching incident as well as 16 logic inputs in the form of communication objects, may be used as inputs for the logic gates. The output of each gate may optionally be configured as 1 bit or 2 x 8 bits
  • 2 actuating variable comparators for output of minimum, maximum or average values. Each with 5 inputs (for values received via communication objects)
  • Configuration is made using the KNX software ETS 5
HousingPlastic material
Colours• similar to RAL 9005 jet black
• similar to RAL 9010 pure white
MountingIn-wall (wall mounting in socket Ø 60 mm,
42 mm deep, resp. cavity wall socket for hole
Ø 68 mm)
Protection categoryIP 20
DimensionsHousing approx. 60 x 60 (W x H, mm), mounting
depth approx. 8 mm, base plate approx.
71 x 71 (W x H, mm)
Total weightapprox. 68 g
Ambient temperatureOperation 0…+50°C, storage -10…+60°C
Ambient air humiditymin. 10% RH, max. 95% RH, avoid bedewing
Operating voltageKNX bus voltage
Bus currentmax. 20 mA
Data outputKNX +/- bus terminal plug
Communication objects224
VOC measurement range400...2000 ppm
Temperature measurement range0…+50°C
Humidity measurement range0% RH …95% RH