KNX eTR 101

Room Temperature Controller


  • Heating controller/thermostat
  • Glass surface with temperature display and +/- touch keys
  • Installation with or without socket
  • Awarded with the Red Dot Award: Product Design 2019 (Best of the Best)

The Room Temperature Controller KNX eTR 101 measures the room temperature and displays the current value in white illuminated figures. Via the bus the device can receive an external measured value and process it with own data to overall temperature value (mixed value).

The KNX eTR 101 has got an integrated PI controller for a heating and a cooling system (one or two step). The room temperature is adjusted by means of the + and - touch buttons.


N° 70650 KNX eTR 101, white
N° 70651 KNX eTR 101, black


  • KNX eTR 101, RAL 9003 signal white (70650) KNX eTR 101, RAL 9003 signal white (70650)
  • KNX eTR 101, RAL 9005 jet black (70651) KNX eTR 101, RAL 9005 jet black (70651)
  • KNX eTR 101: back view and mounting KNX eTR 101: back view and mounting
  • eTR series eTR series
  • Measurement of temperature. Mixed value from own measured value and external values (proportions can be set in percentage), output of minimum and maximum values
  • Display of the actual value or the target value/basic setpoint shift
  • 2 touch buttons (+/-) vor adjustment of the room temperature
  • 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
  • Configuration is made using the KNX software ETS 5
Housing plastic material, glass
Colours • similar to RAL 9003 signal white
• similar to RAL 9005 jet black
Mounting on-wall (directly or with a socket Ø 60 mm, resp. cavity wall socket for hole Ø 68 mm)
Degree of protection IP 20
Dimensions housing approx. 81,5 x 81,5 (W x H, mm), mounting depth approx. 12 mm
Total weight approx. 65 g
Ambient temperature Operation and storage -25…+80°C
Ambient air humidity max. 95% RH, avoid bedewing
Operating voltage KNX bus voltage
Bus current 10 mA at 50% LED brightness
18 mA at 100% LED brightness
Data output KNX +/- bus terminals
Communication objects 41
Temperature measurement range -25…+80°C