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Carbon Dioxide Probe GMP251







The Vaisala CARBOCAP® Carbon Dioxide Probe GMP251 is a new intelligent probe for measuring carbon dioxide. This robust, stand-alone measurement device is designed for use in demanding applications, like life science incubators, where stable, reliable, and accurate performance is required. 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.


♦   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
♦   Calibration certificate included
♦   Applications: life science incubators, cold storages, fruit and vegetable transportation


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The Vaisala Carbon Dioxide Probe GMP251




Resistant to Dust and Chemicals

The GMP251 incorporates an internal temperature sensor for compensation of the CO² measurement according to ambient temperature. The effects of pressure and background gas can also be compensated for. The measurement range is 0 ... 20 %CO² and the sensor performance is optimized at 5 % CO² measurement. The operating temperature range of the probe is wide and the probe housing is classified as IP65. Condensation is prevented as the internal sensor head is heated. The GMP251 is resistant to dust and most chemicals, such as, H2O2 and alcohol-based cleaning agents.


Ease of Use
The GMP251 is a compact probe that is easy and fast to install in a number of ways. It's easy to plug in and plug out. The surface of the probe is smooth, which makes it easy to clean. The probe provides several outputs for the CO2 measurement, analog current and voltage outputs as well as digital RS485 with Modbus protocol.