Vaisala Indigo 200 Series host devices are part of Vaisala Indigo product family and intended for Vaisala's intelligent, stand-alone humidity probes (HMP4, HMP5, HMP7 and HMP8), CO₂ probes (GMP251 and GMP252), as well as our vaporized hydrogen peroxide probe series HPP270: including HPP271 to measure hydrogen peroxide vapor (ppm), or the HPP272 to measure hydrogen peroxide vapor (ppm), temperature, and humidity (relative humidity and relative saturation). The HPP272 probe includes other calculated parameters such as dew point and vapor pressure measurements.

Typical applications include life science incubators, hatchers and setters, greenhouses, cold storage & refrigeration, food transportation, CO₂ safety, demanding HVAC such as animal shelters, swimming pools, parking garages, and facilities using vaporized hydrogen peroxide decontamination.

Indigo 200 allows for easy evaluation and visualization of data, also wirelessly. The installation is uncomplicated, which saves time. Also the probe types are interchangeable reducing downtime. The enclosure with an IP65 classification is safe for harsh environments and resistant to dust and most chemicals. The smooth surface of the enclosure makes cleaning easy.