Vaisala GMP252 CO₂ Probe


  • Measurement range 0 … 10 000 ppm CO2.
  • Intelligent, stand-alone probe with analog and digital outputs.
  • Compatible with Indigo transmitters and Insight PC software.
  • Wide operating temperature range, −40 … +60 °C (−40 … +140 °F).
  • IP65-classified housing.
  • Integrated temperature measurement for CO2 compensation purposes.
  • Compensations also for pressure, oxygen, and humidity.
  • Sensor head heated to prevent condensation.

Dpstar is a leading supplier of environmental measurement sensors for temperature, relative humidity, pressure, dew point, CO2, and other environmental condition monitoring for industrial process application and research. Since the ’90s, we earned a reputation as a trusted partner to our clients through our commitment and dedication. We are an authorized distributor and supplier of measuring sensors solutions from renowned manufacturers Vaisala. Vaisala is a global leader in environmental and industrial measurement. Building on 80 years of experience, Vaisala provides observations for a better world. Vaisala is a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services.

The Vaisala CARBOCAP Carbon Dioxide Probe GMP252 is an intelligent, stand-alone, ppm-level probe. It’s intended for measuring CO2 in agriculture, refrigeration, greenhouses, demanding HVAC applications, and for plant growth chamber manufacturers. It is suitable for harsh and humid CO2 measurement environments where stable and accurate ppm-level CO2 measurements are needed. The operating temperature range is -40 … +60 °C and the measurement range is 0 … 10 000 ppm CO2, and  even up to 30 000 ppm CO2  with a slightly reduced accuracy.  The GMP252 can also be placed inside the Vaisala Radiation Shield DTR250 for measuring dynamically outdoor CO2 levels. The GMP252 probe is part of the Indigo product family and can also be connected to the Indigo500 and Indigo200 series transmitters to extend its features, for example, for a display or relays. The GMP252 can also be used with with the free Insight PC Software. For spot-checking, the ideal choice is the Handheld CO2 Meter GM70. The GMP252 replaces the following discontinued products: GMM222 and GMT222.


Key Benefits

Easy To Use & Clean

The GMP252 is a all-in-one probe, which makes it easy and fast to install. The probe is resistant to dust and most chemicals, such as, H2O2 and alcohol-based cleaning agents. The probe’s surface is smooth, which makes it easy to clean.

Reliable & Accurate

With the wide operating temperature range, the GMP252 is suitable for a large number of applications. The probe provides accurate and stable measurements also in varying conditions.


Vaisala GMP252 CO₂ Probe_DpstarGroup


There are no reviews yet.

Be the first to review “Vaisala GMP252 CO₂ Probe”

Your email address will not be published.