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Comet CO2 Concentration Transmitter with RS232 interface, internal carbon dioxide sensor


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Comet CO2 concentration transmitter with RS232 interface, internal carbon dioxide sensor

CO2 - carbon dioxide level sensor.

Included in delivery:

  • T5340 Sensor
  • Quick start manual
  • Traceable calibration certificate
  • Technical support at discussion forum

Green LED shines - CO2 concentration 0 to 1000 ppm
Yellow LED shines - CO2 concentration 1001 to 1200 ppm
Red LED shines - CO2 concentration 1201 ppm and more



  • CO2


  • Measuring range 0 to 2000 ppm
  • Accuracy ±(50ppm +2% from reading) at 25°C and 1013hPa
  • Resolution 1 ppm


  • Operating temperature -30 to +60 °C
  • Channels internal CO2 sensor
  • Output RS232
  • Communication protocol ModBus RTU and Advantech ADAM compatible protocol
  • Power 9-30 Vdc
  • Protection class IP30
  • Dimensions 88,5 x 94 x 39,5 mm
  • Weight approx. 145 g
  • Warranty 3 years


    * the features may vary depending on the device type

    • accurate measurement of Temperature, Relative humidity, Dew point, Atmospheric pressure, CO2, Two-state events
    • industrial or interior design with protection up to IP65
    • integrated sensors, external probe, duct mount design
    • relays output 250Vac / 8A or 50 V on selected models


    TSensor (3-4-1-0)

    Sensor Reader (2-0-6-0)

    Conversions - application for recalculation of values


    3D model T5441

    Terms and Conditions COMET System s.r.o.


    Instruction Manual

    Quick Start Manual

    Declaration of Conformity

    Description of communication protocols of Tx3xx and Tx4xx transmitters with RS232 and RS485 communication interface



    CATALOG - Digital sensors and regulators with serial RS485/RS232 output

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