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GMD20 CO? Transmitter Series

Updated:2025-03-13

Brand:Vaisala
Model: GMD20
Description: The duct-mounted Vaisala CARBOCAP? Carbon Dioxide Transmitter Series GMD20 are specially designed for demand-controlled ventilation (DCV). They are easy to install and require no maintenance. The GMD2
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Product Details

Features

Leak insensitive in-duct measurement
Incorporates the Vaisala CARBOCAP® sensor - the silicon based NDIR
Excellent long-term stability
Negligible temperature dependence
Five year recommended calibration interval
Warranty time 2 years

Key Benefits

Economical choice

Using the GMD20 series transmitters ensures the best possible control of air quality and results in considerable savings in energy consumption, maintenance and recalibration costs.

Versatile Transmitters

The GMD20 series transmitters can be used independently, or incorporated into building energy management systems. The series consists of duct mount units GMD20 and GMD20D. Version D is equipped with a display. The compact sensor head design of the duct units fits inside the ventilation duct, eliminating the risk of leaking gaskets and measurement errors

Vaisala CARBOCAPaTechnology

The GMD20 series transmitters use the silicon-based Vaisala CARBOCAPa sensor. The simple structure and reference measurement capabilities make this single-beam, dual-wavelength NDIR sensor extremely stable and reliable. The temperature and flow dependencies of the sensor are negligible. In addition, the measurement accuracy is not affected by dust, water vapor, and most chemicals.

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