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.

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 2^nd-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 storage, fruit and vegetable transportation