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CO2 concentration and temperature transmitter with two 4-20mA outputs T8148 is specially designed for use in exacting interiors in building energy management and HVAC systems. It designed for easy installation on ordinary KU68 wiring boxes for household switches and sockets.

Method of CO2 sensor multipoint calibration leads to an excellent accuracy measurements of CO2 in the entire of operating temperature range. With this sensor is the device able to meet the demanding requirements for outdoor use. The measurement principle is based on the NDIR principle with dual wavelength, which automatically compensates for aging of the sensor. The sensor is resistant against the pollution and provides maintenance-free operation and excellent long-term stability.

Transmitter contains a microprocessor based control circuitry in an ABS plastic case with connection terminals.

The CO2 concentration and temperature sensors are built inside the case. Large dual line LCD is an advantage. Display is possible to switch off. Computerized design ensures maximum long term stability and failure indication.

Measured CO2 concentration and temperature values are converted to 4-20mA current outputs.

Included in delivery:

  • Traceable calibration certificate
  • Quick start manual
  • Free program TSensor for configuring of the transmitter is ready to Download

Transmitter is also equipped with an alarm LED:

  • LED shines green - CO2 concentration 0 to 1000 ppm
  • LED shines yellow - CO2 concentration 1001 to 1200 ppm
  • LED shines red - CO2 concentration 1201 ppm and more


Sensor typeT8148
Output4 to 20 mA
Measured ValueCO2 + temperature
Temperature Measuring Range-10 °C to 50 °C
LCD displayYES
Range of CO2 concentration measurement0 to 2000ppm
Accuracy of CO2 concentration measurement±(50 ppm +2 % from reading) at 25 °C and 1013 hPa
Accuracy of temperature output±0.5 °C
Temperature unitsdegrees Celsius, Fahrenheit
Temperature operating range-10 °C to +50 °C
Ingress protectionIP 20
Power supply9 to 30 Vdc
Dimensions88 x 106 x 33 mm (W x H x D)
Material of the connection headABS
weightapproximately 150g

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.


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