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Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 for ppm-level Measurements

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​The Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 is an intelligent, stand-alone probe for measuring CO2 in agriculture, refrigeration, greenhouses and demanding HVAC applications. It is suitable for harsh and humid CO2 measurement environments where stable and accurate ppm-level CO2 measurements are needed.

The GMP252 is based on Vaisala’s unique, second-generation CARBOCAP® technology that enables exceptional stability. A new type of infrared (IR) light source is used instead of the traditional incandescent light bulb, which extends the lifetime of the GMP252.

The GMP252*) probe can be connected to the Indigo 201 host device to extend its features, for example, for a display or relays. Read more about it on the Indigo 201 product page.

The warranty for the GMP252 is 24 months.

•    Measurement range 0 … 10 000 ppmCO2
•    Can be used for measurement even up to 30 000 ppmCO2 with reduced accuracy
•    Intelligent, stand-alone probe with analog (V, mA) and digital outputs (RS485 with Vaisala
     protocol or Modbus)
•    Superior long-term stability with the 2nd-gen proprietary CARBOCAP® technology
•    Wide operating temperature range -40 … +60 °C
•    IP65 classified housing
•    Full temperature and pressure compensations
•    Integrated temperature measurement for CO2 compensation purposes
•    Compensations for background gases: O2, and humidity
•    Sensor head heated to prevent condensation

*)All GMP252 probes manufactured from 2017 onwards with serial numbers starting with the letter N or latter in alphabetical order have full Indigo compatibility.
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    • Warranty 
    • All Vaisala products and services are covered by a 12-month warranty as standard, with selected products covered for up to 24 months. During this period you benefit from free repair or replacement of faulty equipment.
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