Product - pH HQd Meters and IntelliCAL™ Probes

HQd Configurator  

HQd Configurator

HQd Configurator

Hach now has the option of creating your own HQd system to suit your specific testing needs. Choose from options including benchtop or portable, power supply, testing parameter and more!
Build your own HQd System

pH Meters & Probes  

Choose from Four Models, Ultra-Performance to Basic

Hach’s HQd meters work with IntelliCAL™ ultra, rugged, standard refillable and standard gel-filled pH probes to meet your measurement needs. Multiple probes work with one meter, without the need to recalibrate. Track performance with calibration history. A variety of cable lengths available ranging from 1 m for lab to 30 m for rugged field use.

Hach HQd IntelliCAL smart probes:

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

See below for individual meters and probes, or see our kits which have everything you need to start testing!

HQd Meters for pH  

HQ440d Benchtop Dual Input, Multi-Parameter Meter - pH, Conductivity, Optical Dissolved Oxygen, ORP, and ISE

Laboratory

  • 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
HQ40d Portable pH, Conductivity, Optical Dissolved Oxygen (DO), ORP, and ISE Multi-Parameter Meter

Portable

  • HQ40d Portable
    • - Dual Input
    • - Multi-Parameter - pH, Conductivity, Dissolved Oxygen, ORP, and ISE
  • HQ30d Portable
    • - Single Input
    • - Multi-Parameter - pH, Conductivity, Dissolved Oxygen, ORP, and ISE
  • HQ11d Portable
    • - pH Meter
    • - Most Economical Portable Option

IntelliCAL pH Probes  

IntelliCAL™ PHC281 pH Ultra Refillable pH Electrode, 1 meter cable

pH Ultra Probes

Gives fastest response compared to competitor probes. Ideal for working with difficult samples such as low-ionic strength (pure water) or rapid measurement of many sample types.

Rugged pH Probes

Designed for harsh environments. Features a super-tough, stainless steel body and polymer shroud that protects the sensor from impact. Reinforced, steel-sheathed cables are durable, yet manageable. Waterproof for 24 hours at a depth of 30 meters.

IntelliCAL™ PHC281 pH Ultra Refillable pH Electrode, 1 meter cable

Standard Refillable pH Probes

Liquid-filled pH probe also measures temperature. Non-submersible.

IntelliCAL™ PHC281 pH Ultra Refillable pH Electrode, 1 meter cable

Standard pH Probes

Low-maintenance gel-filled pH probe also measures temperature. Waterproof for up to 24 hours at a depth of three meters.

HQd Starter Kits for pH - Everything you need to start testing!  

HQ40d Advanced pH/BOD Package

Laboratory - includes a Benchtop HQ440D or HQ411D

HQ40d Portable Water Quality Lab Package with pH, Optical Dissolved Oxygen, and Conductivity/TDS/Salinity Probes

Portable - includes a portable HQ40d or HQ11d meter