Established in 1987, HM Digital, Inc. (formerly known as Heemang Electronics) is an original equipment manufacturer (OEM) that has been recognized worldwide for providing the best values in water testing instrumentation, especially the increasingly popular TDS meter.
Their products are co-designed between their Los Angeles office and their ISO-9001-certified factory in Seoul, Korea, producing high quality water testing and monitoring equipment for all types of water treatment and purification systems, including reverse osmosis (RO), that are sold in over 50 countries throughout the world. They also offer OEM services for customized products and private labeling.
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Temperature meter. Measures total dissolved solids (TDS) and
temperature. Automatic temperature compensation (ATC). Water resistant housing. Measurement range: 0 5000 ppm. Auto off function, data hold function and low battery indicator. Large and easy to read LCD screen includes ...
Waterproof eco tester pH1. Ideal for students, hydroponics
and hobbyists. Perfect for less demanding applications. Waterproof, dustproof housings float. Push button calibration with auto buffer recognition. Includes transparent electrode cover / sample cup. Push button calibration, HOLD function and ...