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CO2 transmitter


The Vaisala CARBOCAP Carbon Dioxide Transmitter Series GMT220 is designed to measure carbon dioxide in harsh and humid environments. The housing is dust and waterproof to IP65 (NEMA 4) standard. The materials have been choosen for good corrosion resistance.

Main attractions:
  • High-measurement technology.
  • Optimal measurement range for each application.
  • Interchangeable probes.
  • Simple installation.
  • Easy field maintenance.

  • Technical Specs

    Model GMT220
    Measurement Range GMT221:
    0 ... 2 % CO2
    0 ... 3 % CO2
    0 ... 5 % CO2
    0 ... 10 % CO2
    0 ... 20 % CO2
    GMT222 for low concentrations:
    0 ... 2000 ppm
    0 ... 3000 ppm
    0 ... 5000 ppm
    0 ... 7000 ppm
    0 ... 10 000 ppm
    Sensor Vaisala CARBOCAP®
    Accuracy at +25 C against certified factory references (incl. repeatability and calibration uncertainty) GMT221:
    < [0.02% CO2 + 2 % of reading]
    (applies for concentration above 2% of full span)
    GMT222: < [20 ppm CO2 + 2 % of reading]
    Power supply <4 W
    Output 0 ... 20 or 4 ... 20 mA and 0 ... 10 V
    Mechanics 2 m and 10 m (optional):
    Complies with classifications from PTB (CENELEC, Europe), FM (USA), CSA (Canada), TestSafe (Australia), TIIS (Japan) and PCEC (China)
    Material:
    transmitter body: ABS plastic
    probe: PC plastic
    Housing classification: IP65 (NEMA 4)

    Data sheet

    CatalogueProduct Selection Form



    See also
    Ecological CO2 transmitter
    The Vaisala CARBOCAP Carbon Dioxide Probe GMP343 is an accurate and rugged probe-type instrument for ecological measurements. Example applications include:
  • CO2 soil respiration
    .....
  • CO2 transmitter
    The Vaisala CARBOCAP Carbon Dioxide Transmitter Series GMT220 is designed to measure carbon dioxide in harsh and humid environments. The housing is dust and waterproof to IP65 (NEMA 4) standard. The m.....
    Wall/Duct mounted CO2 transmitter
    The duct mounted Vaisala CARBOCAP Carbon Dioxide Transmitter Series GMD20 and wall mounted Vaisala CARBOCAP Carbon Dioxide Transmitter Series GMW20 are specially designed for Demand Controlled Ventila.....


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