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.

Features

Measurement range 0 … 10 000 ppm CO2

Can be used for measurements even up to 30 000 ppm CO₂ with reduced accuracy

Intelligent, stand-alone probe with analog (V, mA) and digital outputs (RS485 with Vaisala protocol or Modbus)

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

+ Show more

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.

Watch the video