Simplified Laboratory and Portable Instruments for Water & Wastewater Testing and Monitoring

Spectrophotometers, Colorimeters and Liquid Color Measurement

  • Testing Parameters: Chemical Oxygen Demand (COD), Chlorine, Ammoniacal Nitrogen, Iron, Nickel, Chromium, Nutrient, Silica, Hazen Color, ADMI and other water quality tests 

Laboratory and Portable Meters

  • Testing Parameters: pH, Dissolved Oxygen (DO), Conductivity, TDS, BOD, Turbidity and other water quality tests

Titration System

  • Testing Parameters: Chloride, Alkalinity, Hardness, Acidity, Sulfite, Volatile Acids and other water quality tests

Samplers and Flow Meters

Automate Flow Injection Analysis

HQd-Series Portable & Benchtop Meters

HQd Benchtop Meters


Flexible benchtop meter makes your lab testing of critical water quality parameters more efficient

Two input channels for simultaneous measurement of pH, Conductivity, Optical Dissolved Oxygen, BOD, ORP, Ammonia, Ammonium, Fluoride, Chloride, Sodium, and temperature - any IntelliCAL™ smart probe.

Intuitive user interface for simple operation and accurate results

Guided calibration and check standard routines reduce calibration errors while stabilization alerts and visual measurement lock ensure that you can trust the accuracy of the results.

Trust your measurements - IntelliCAL™ smart probes store all calibrations in the probe

Calibration history allows quick and easy change out of probes without re-calibrating. The HQd™ smart system records serial numbers, current calibration data, user ID, sample ID, time, and date automatically in the data log for complete GLP traceability..

Enhance productivity with an ultra-bright screen and large font size for easy to read results

Internal USB ports simplify data transfer, peripherals, and software updates and connection to PCs printer and keyboards.


  • HQ440d Benchtop
    • - Dual Input
    • - Multi-Parameter - pH, Conductivity, Dissolved Oxygen, ORP, and ISE
  • HQ430d Benchtop
    • - Single Input
    • - Multi-Parameter - pH, Conductivity, Dissolved Oxygen, ORP, and ISE
  • HQ411d Benchtop
    • - pH/mV Meter
    • - Most Economical Benchtop Option
Upcoming Events