CO₂ Probe GMP252

CO2 Probe is suitable for agriculture, refrigeration, greenhouses, demanding HVAC applications, and for plant growth chamber manufacturers

CO2 Probe GMP252 with Indigo 200 Series display

Radiation shield DTR250 with GMP252 inside and the Indigo host

Radiation shield DTR250 for support bars

CO₂ Probe GMP252

for ppm-level measurements in agriculture, refrigeration, demanding HVAC, and for plant growth manufacturers

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 Indigo 200 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. Spare parts and accessories for the GMP222 probe are still available and can be purchased in the Vaisala online store.

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Watch the video

Introduction to GMP251 and GMP252

Key Benefits

Easy to use and 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 and 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.

Overview

The Vaisala CARBOCAP^® Carbon Dioxide Probe GMP252 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 GMP252. It has full temperature and pressure compensations of CO₂ measurement – integrated temperature measurement for compensation purposes. The sensor head is heated to prevent condensation.Digital output over RS-485: Modbus & Vaisala Industrial Protocol. A calibration certificate is always included with the product.

The GMP252*) probe can be connected to the Indigo 201 host device to extend its features, for example, for a display or relays. Watch this short introduction video about Indigo or read more about it on the Indigo 200 Series product page.

The warranty for the GMP252 is 24 months.

*)All GMP252 probes manufactured from 2017 onwards with serial numbers starting with the letter N or latter in alphabetical order have full Indigo compatibility.