RH Systems designs and sells custom temperature and humidity solutions, including chilled hygrometers. Founded in 1998 by Bob Hardy, a 20 year veteran of the industry, RH Systems is a privately-held company headquartered in Gilbert, Arizona.

Our product line is jointly developed with our European partner, MBW, and manufactured in Switzerland and the United States. We provide the design expertise in embedded control and automation, including touch screen, user interface and embedded firmware.

Our products are used in commercial laboratories and national metrology institutes around the world, and we are proud of the elite companies who have chosen our products.

Through AVO New Zealand the RH973 SF6 Gas purity analyzer has been sold to approx. 100 Australasian customers bringing to the region a tester specifically designed for measurement of humidity and SF6 purity in gas insulated switchgear systems.