GMD20 CO2 Transmitter for HVAC, Duct Model for DCV - Vaisala Online Store

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GMD20 CO2 Transmitter for HVAC, Duct Model for DCV

The duct mounted Vaisala CARBOCAP® Carbon Dioxide Transmitter GMD20 is especially designed for use in Demand Controlled Ventilation (DCV) systems. Reliable leak-insensitive installation with CO2 sensor inside the duct. The transmitter has excellent long term stability resulting in low cost of ownership.

The simple sensor design (no moving parts) provides excellent durability while the built-in reference measurement ensures superior stability. The recommended calibration interval is five years.

The GMD20 includes field selectable 0…20 mA, 4…20 mA or 0…10V output corresponding to 0…2000 ppm CO2.

GMD20 CO2 Transmitter for HVAC, Duct Model for DCV
GMD20 Duct Mounted Carbon Dioxide Transmitter for Demand Controlled Ventilation Applications
Standard delivery time for single unit: 1 week
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Warranty: 24 months
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Part no. GMD20

Quantity Price
245 € + VAT

Detailed information

Measurement parameter(s)Carbon dioxide
Measurement range0 ... 2000 ppm
Measurement accuracy± (2 % of range + 2 % of reading)
Operating temperature-5 ... +45 °C (+23 ... +113 °F)
Operating voltage18 ... 30 VDC, 24 VAC
Analog outputs0 ... 20 mA
4 ... 20 mA
0 ... 10 V
Housing classificationIP65 (NEMA 4)
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