Established in 1987, HM Digital is an original manufacturer recognized worldwide for providing the best value in water testing instrumentation, particularly the increasingly popular TDS meter.
These products are co-designed by HM Digital U.S. office and there headquarters in South Korea, and they produce high-quality water testing and monitoring equipment for all types of water treatment and purification systems—including reverse osmosis (RO). These products are sold in over 50 countries worldwide.