Indigo 201 transmitter with CO2 probe, Display, Current loop, Relays - Vaisala Online Store

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Indigo 201 transmitter with CO2 probe, Display, Current loop, Relays

The Indigo 201 is an IP65-rated analog output transmitter, a host device for Indigo compatible CO2 probes with display, 4 ... 20 current loop output and two relays. Probes can be connected directly or with a remote cable (available as accessories) to the Indigo 201. User configuration and temporary viewing of data is easy and convenient with a wireless browser-based user interface

The GMP251 and GMP252 are intelligent probes. They are ideal for measuring carbon dioxide in agriculture, refrigeration, greenhouses and demanding HVAC applications. They are suitable for harsh and humid CO2 measurement environments where stable and accurate CO2 measurements are needed.

These probes are based on Vaisala’s unique, second-generation CARBOCAP® technology that enables exceptional stability. The measurement range is selectable between:

  • GMP252: 0 ... 2000 and 0 ... 20000 ppmCO2
  • GMP251: 0 ... 2% and 0 ... 20%CO2

See all Indigo probes
See all Indigo Transmitter bodies

The package includes:

  • GMP251 or GMP252 probe
  • Indigo 201 transmitter

Note that probe and transmitter may be shipped separately.

Watch the video to learn more about the Indigo 200 Series host device:

Indigo 201 transmitter with CO2 probe, Display, Current loop, Relays
Indigo 201 transmitter with CO2 probe GMP252 for agriculture, refrigeration, greenhouses and demanding HVAC applications.
Standard delivery time for single unit: 1 week
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Warranty: 24 months
About warranty »
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Detailed information

Measurement parameter(s)Carbon dioxide
Measurement rangeGMP251: 0 ... 2/ 3/ 5/ 10/ 20 %CO2
GMP252: 0 ... 2000/ 3000/ 5000/ 10000/ 20000 ppmCO2
Measurement accuracyat 25 °C and 1013 hPa:
GMP251:
at 5% CO2 ±0.1%CO2
at 0 ...8% CO2 ±0.2%CO2
at 8 ...20% CO2 ±0.4%CO2
GMP252:
0 ... 3000 ppmCO2 ±40 ppmCO2
3000 ... 10 000 ppmCO2 ±2% of reading
Up to 30 000 ppmCO2 ±3.5% of reading
Operating temperature-40 ... +60 °C
Operating voltage24 VDC
Analog outputs4 ... 20 mA scaleable
Housing classificationIP65
Links See full specifications on Vaisala.com
Download user guides and other product documents on Vaisala.com


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