GMP251 CO₂ Probe
High concentration measurement for applications with strict requirements such as life science incubators and cold rooms.
The Vaisala CARBOCAP® GMP251 CO2 probe is an intelligent probe for high concentration CO2 measurement. The GMP251 is ideal for demanding applications that require stable and accurate CO2 concentration measurements, such as life science incubators, cold rooms, and the transport of fruits and vegetables, where excellent stability, reliability, and accuracy are essential. The operating temperature range is -40 to +60°C, and the measurement range is 0 to 20% CO2. The GMP251 CO2 probe belongs to the Indigo product series and can be connected to the Indigo 200 series transmitter for extended functionalities such as display and relay. It can also be used for spot checks when connected to the GM70 handheld CO2 meter. The GMP251 is the successor to the following discontinued models: GMM221, GMT221. Spare parts and accessories for the GMP221 CO2 probe are still available.
basic information
【Features】 ■ Measurement range: 0–20% CO₂ ■ Intelligent probe with analog (V, mA) and digital (RS-485) outputs ■ Excellent long-term stability with proprietary second-generation CARBOCAP® technology ■ Wide operating temperature range: -40 to +60°C ■ IP65 compliant housing ■ Temperature/pressure compensation ■ Built-in internal temperature sensor for CO₂ compensation ■ Compensation for background gas (O₂) and humidity ■ Condensation prevention through sensor head heating *For more details, please feel free to contact us.
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Notice of Expansion of CO2 Probe Calibration Service at Tokyo Service Center
We are pleased to announce that the Vaisala Tokyo Service Center will begin offering services with a new CO2 calibration facility starting February 2022. As a result, calibration services for the GMP251/252 CO2 probes will now be available at the Tokyo Service Center, allowing for a shorter service time compared to the previous calibration period at our headquarters in Finland. Additionally, calibration certificates can now be issued in Japanese. ■Vaisala CARBOCAP GMP252 CO2 Probe This is an intelligent probe for measuring CO2 at ppm levels. The GMP252 measures CO2 in applications such as agriculture, CO2 refrigerants, greenhouses, and demand-controlled HVAC systems. It is suitable for stable and accurate ppm level measurements of CO2 in harsh environments with high humidity. The operating temperature range is -40 to +60°C, and the measurement range is 0 to 10,000 ppm CO2, with the capability to measure up to 30,000 ppm CO2 depending on accuracy. Accurate measurement of CO2 has been gaining increasing attention in recent years for a wide range of applications, including incubators, refrigerant leak detection, and biotechnology. *Case studies are introduced in the attached materials.
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September 19, 2019 (Thursday) Vaisala CO2 Webinar
We are pleased to announce that our company will be holding a webinar titled "Selection of CO₂ Measurement Devices Considering TCO (Total Cost of Ownership) Suitable for Agriculture." CO₂ measurement is widely used in agriculture. However, maintaining accurate measurement values over the long term is not actually easy. Even slight deviations in measurement values can significantly impact the quality of the final products. It is important to comprehensively consider both the initial investment and the ongoing maintenance and management costs when selecting equipment. In this webinar, we will introduce how to select the optimal CO₂ measurement devices for agriculture from the perspective of TCO. We will explain practical examples of CO₂ measurement in greenhouses, mushroom cultivation, livestock barns, and poultry farms, as well as new technologies of the Vaisala 'CARBOCAP(R) CO2 Sensor' that employs a single light source dual-wavelength comparison infrared non-dispersive method. Additionally, we will specifically discuss the following topics: - Potential risks that may arise when measuring CO₂ - Useful advice for ensuring reliable CO₂ measurement practices We look forward to your participation.
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Vaisala is a global leader in measurement instruments and intelligence for climate change mitigation. We provide our customers with equipment and data to improve resource efficiency, promote energy transition, and ensure safety and well-being for people and societies around the world. Based on nearly 90 years of accumulated technological innovation and expertise, we carry out all measurements and means for this planet with a team of over 2,500 experts. Vaisala's Series A shares are listed on the Nasdaq Helsinki Stock Exchange.