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

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

 
Airy Technology laser particle counter
Airy Technology Laser Particle Counters P311

Airy Technology P311’s large color display shows cumulative and differential particle counts of 3 particle sizes simultaneously. The middle particle range can easily be changed by a user. P311’s maximum concentration of 4,000,000 particles/ft3 and up to 8,000 data set record capabilities is the highest in the market. Data can be checked on the unit display and/or easily downloaded to your PC via USB cable and saved as a CVS file which is transferable to Excel. P311 is accurate, dependable, user friendly, compact and light weight.
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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