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HM Digital® Water Testing Instruments

PANEL MOUNT CONTROLLER
PANEL MOUNT CONTROLLER
  • Monitors and controls TDS levels for high output commercial systems.
  • Large, bright L.E.D. display.
  • An alarm will sound if the TDS level rises above the user-set level.
  • Installs easily in minutes. Includes one sensor probe (see photo).

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DUAL TDS CONTROLLER
DUAL TDS CONTROLLER
  • Monitors and controls TDS levels of two water lines (e.g., feed water and product water) for high output commercial systems.
  • Large, bright L.E.D. display.
  • An alarm will sound if the TDS level rises above the user-set level for the output water.
  • Installs easily in minutes.
  • Includes two sensor probes (see photo).
  • The PS-200 is a monitor for Line 1 (in-line) and a controller for Line 2 (out-line)

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DUAL DISPLAY TDS CONTROLLER
DUAL DISPLAY TDS CONTROLLER
  • Simultaneously monitors and controls the TDS levels of two water lines (e.g., the feed water and product water) for high output commercial systems.
  • Large, bright L.E.D. displays.
  • An alarm will sound if the TDS level rises above the user-set level for both lines.
  • Installs easily in minutes.
  • Includes two sensor probes.

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CONDUCTIVITY CONTROLLER
CONDUCTIVITY CONTROLLER
  • Monitors and controls conductivity levels for high output commercial systems.
  • Large, bright L.E.D. display.
  • An alarm will sound if the EC level rises above the user-set level.
  • Installs easily in minutes.

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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