The Vaisala Indigo 201 analog output transmitter extends the functionality of Vaisala compatible probes by displaying their measurement results and converting them into other formats. This probe host is a plug-and-play device for current and future Vaisala Indigo compatible probes. It has a color LCD display but is also available as a non-display version with a LED indicator for notifications. Typical applications include life science incubators, hatchers and setters, greenhouses, cold storage and refrigeration, food transportation, CO2 safety, and demanding HVAC such as for animal shelters and parking garages.