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HQ40d Portable pH, Conductivity, Dissolved Oxygen, ORP, and ISE Multi-Parameter Meter

The HQd meter is a customized electrochemistry solution for water quality testing that takes the guesswork out of your measurements.

Hach HQd IntelliCAL smart probes:

  • automatically detect the testing parameter
  • automatically recognize the calibration history & method settings
  • minimizes errors
  • minimizes setup time

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