RH Systems has been a leader in high-precision humidity and temperature instrumentation for decades. Founded in 1998 by Bob Hardy, RH Systems remains a privately held family business located in Gilbert, Arizona.

We manufacture equipment and provide expertise for a wide range of humidity/temperature applications, throughout the global market.

Our precise humidity generators, based on fundamental two-pressure two-temperature principles, are leveraged in a variety of calibration laboratories and production facilities.

RH Systems Downloads

RH Systems - Model 573 - Dew Point Mirror Brochure

RH Systems - Model 373 - Dew Point Mirror Brochure

RH Systems - Model 473 - Dew Point Mirror Brochure

RH Systems - Model 973 - Dew Point Mirror Brochure

RH Systems - Model CGS-240 - Humidity Generator Brochure