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Indigo 201 Analog Output Transmitter

Vaisala Indigo 201 Analog Output Transmitter is a host device for Vaisala's intelligent, stand-alone CO2 probes*), GMP251 and GMP252. The products are suitable for use in life science, agriculture, food, and demanding HVAC applications.

Indigo 201

Indigo 201 Indigo 201Indigo 201Indigo 201

Main features
Plug-and-play probe connection to Vaisala's CO2 probes GMP251 and GMP252
Effortless installation saves time
Wireless interface for configuration and temporary use Minimal downtime with interchangeable probe
Operating temperature: -40 ... +60 °C,
with display -20 ...+60 °C
Safe for harsh environments:
resistant to dust and most chemicals
LCD color display (optional non-display version) Smooth surface makes cleaning simple
IP65 enclosure
Easy evaluation and visualization of data, also wirelessly
24 V power supply input
3 analog outputs (mA or V)
2 configurable relays


*)All GMP251 and GMP252 probes manufactured from 2017 onwards with serial numbers starting with the letter N or latter in alphabetical order have full Indigo compatibility.