Product - HQd Meters and IntelliCAL™ Probes

HQd Meters and Fully Interchangeable Probes  

The smart choice for
multi-parameter lab & field measurement.


Hach, the leader in water quality, has developed 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

Hach gives portable measurement flexibility and ease of operation with its HQd meter and full suite of interchangeable IntelliCAL laboratory and field probes.

  • pH including pH ultra for rapid measurement of all samples and difficult low-ionic strength waters
  • ORP (Oxidation Reduction Potential)
  • Sodium Ion Selective Electrode (ISE)
  • Conductivity
  • DO with patented Hach LDO® (Luminescent Dissolved Oxygen) technology
  • BOD measurement utilizing patented Hach LDO technology
  • Ammonia Ion Selective Electrode (ISE)
  • Chloride Ion Selective Electrode (ISE)
  • Fluoride Ion Selective Electrode (ISE)
  • Nitrate Ion Selective Electrode (ISE)
  • Ammonium Ion Selective Electrode (ISE)

Hach's Line of Meters & Probes  

Choose the right tools for you:


HQd Digital Catalog

All the tools you need to decide if HQd is for you! HQd Digital Catalog


Electrochemistry Selection Guide

Download Hach's Lab & Field Meters & Probes Selection Guide to see our entire family of meters & probes. (PDF: 5MB)


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