The Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 is an intelligent, stand-alone, ppm-level 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 200 Series host devices to extend its features, for example, for a display or relays. Watch this introduction video about Indigo or read more about it on the
Indigo 200 Series 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
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