Skip Ribbon Commands
Skip to main content

Indigo compatible CO2 Probe GMP251 for life science incubators, cold storages and all demanding applications


​The Vaisala CARBOCAP® Carbon Dioxide Probe GMP251 is an intelligent, stand-alone, %-level probe for measuring carbon dioxide in life science incubators, cold storages, fruit and vegetable transportation, and in all demanding applications where stable and accurate %-level CO2 measurements are needed.

The GMP251 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 GMP251.

The GMP251*) 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 GMP251 is 24 months.

•    Measurement range 0 … 20 %CO2
•    Intelligent, stand-alone probe with analog (V, mA) and digital (RS485) outputs
•    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
•    Applications: life science incubators, cold storages, fruit and vegetable transportation

*) All GMP251 probes manufactured from 2017 onwards with serial numbers starting with the letter N or latter in alphabetical order have full Indigo compatibility.

    Contacts & Pricing

    Contact Our Expert Sales Team


    Get Help on Technical Issues

    Related Services
    • 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.
    • Warranty 
    • Service Center Repair  
    • If your instrument requires repair.
    Accessories & Spare Parts

     Accessories & Spare Parts