Why Use a Thermohygrometer?

Thermohygrometers are the most common type of humidity sensor and you’ll find them in handheld units and transmitters. They commonly display temperature and humidity simultaneously and have a response rate of about four seconds. Their sensors read resistance or capacitance. Typical applications include:

Extech RH390 Precision Thermohygrometer

Extech RH390 Precision Thermo-hygrometer

  • Breweries and fermentation
  • Environmental research
  • Food ripening and storage
  • HVAC
  • Pharmaceutical incubators
  • Pharmaceutical tablet coating
  • Plant growth chambers

With features that can include large, back-lit displays, calculation of dew point, min/max, data hold, data logging, infrared temperature measurements, RS232 output, printing capabilities, and more, thermohygrometers can be handy instruments. Why focus your search on a thermohygrometer? Here is an overview of the pluses and minuses of these instruments:

Advantages to Using a Thermohygrometer

  • Low cost
  • Quick sensor response time
  • Repeatability at ambient RH values
  • Portability

Drawbacks to Using a Thermohygrometer

  • Susceptibility to losing calibration
  • Level of accuracy is medium or moderate
  • Probes are not interchangeable

View all thermohygrometers

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