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About the Company

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.

‣ Company Profile

News and Articles

DM-2 Upgraded
| 03/19/2012
The DM-2 (Commercial Inline Dual TDS Monitor) has been upgraded to include digital calibration, low battery indicator, improved accuracy, longer battery life (2 years), longer auto shut-off time (3 min), diagnostic error messaging, and shielded sensor cables. More …
PC-100 Discontinued
| 10/04/2010
The PC-100 Conductivity Controller will be discontinued, to be replaced by the PSC-150. More …
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News Releases

HM Digital's HMD Line
12/19/2009
HM Digital Products Now on Every Continent on Earth
02/01/2008
ZeroWater selects HM Digital as its sole provider of electronic digital TDS meters to demonstrate the ZeroWater brand's superior filtration to 000 ppm of TDS
06/12/2012
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HM Digital is a member of the following organizations:

For orders or more information

Please contact your nearest distributor, or contact us directly:

HM Digital, Inc.
5819 Uplander Way
Culver City, CA 90230
U.S.A.

Tel: 1-800-383-2777
Tel: 1-310-410-3100
Fax: 1-310-410-3106
E-mail: info@tdsmeter.com
Skype: hmdigital