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Testing Instruments

HM Digital® Water Testing Instruments
HM Digital® Water Testing Instruments

Ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver.

 
IQAir® Laser Particle Counters
IQAir® Laser Particle Counters

ParticleScan instruments are advanced handheld laser particle counters, that are able to detect tiny airborne particles down to the size of bacteria.
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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