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HM Digital® Water Testing Instruments

HM Digital® TDS Meter 3 (with carrying case)
HM Digital® TDS Meter 3 (with carrying case)
  • Highly efficient and accurate due to its advanced microprocessor technology.
  • Hold Function: saves measurements for convenient reading and recording.
  • Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries.

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HM Digital® TDS Meter 4 (pocket size)
HM Digital® TDS Meter 4 (pocket size)
  • The smallest TDS meter on the market.
  • Advanced microprocessor technology.
  • Hold Function: saves measurements for convenient reading and recording.
  • Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries.

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TDS METER 4TM (pocket size with digital thermometer)
TDS METER 4TM (pocket size with digital thermometer)
  • Includes an internal digital thermometer (celsius).
  • The smallest and lightest TDS meter available on the market.
  • Hold Function - Saves measurements for convenient reading and recording.
  • Auto-off function - Turns off meter after 10 minutes of non-use to conserve batteries.

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COM-100- Waterproof EC/TDS/TEMP Combo Meter
COM-100- Waterproof EC/TDS/TEMP Combo Meter
Applications:
  • Agriculture
  • Aquariums & Aquaculture
  • Car & Window Washing
  • Colloidal Silver
  • Drinking Water
  • Environmental Testing
  • Food & Coffee Service
  • Health & Wellness
  • Horticulture Hydroponics
  • Pools & Spas
  • Pharmaceutical & Medical
  • Printing Industry
  • Water Bottling
  • Water Treatment
  • Water Purification

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DIGITALTHERMOMETER (Industrial-Grade)
DIGITALTHERMOMETER (Industrial-Grade)
For use in:
  • All hot and cold fluids and/or solids
  • Aquariums Kitchens and bakeries
  • Hydroponics and aquaculture
  • Freezers/coolers and heating systems
  • Motors, generators and ventilations systems
  • Academic, scientific and medical laboratories

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TDS in water

What is TDS?
Where do TDS come from?
Why measure the TDS level?
How to reduce or remove the TDS?

Did you know:
...Different government agencies have different requirements for water quality. For example:
  • The U.S. EPA sets the maximum contaminant level for TDS at 500 ppm.
  • The World Health Organization (WHO) sets the maximum contaminant level for TDS at 1000 ppm.
Source: HM Digital Inc., Education Center