HQ Series Portable Measurement Instruments

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The HQ Series is for water quality professionals who want to perform electrochemical analysis in the field and laboratory. Our new portable platform provides IP67 durability class while allowing you to make intuitive, accurate measurements, manage data, and easily review results.

Successful calibration has never been easier
Most measurement problems stem from incorrect calibration procedures. Thanks to our on-screen, step-by-step calibration and troubleshooting procedures, water quality professionals can always succeed.

Send your daily activities with just a few clicks
Whether working at your facility or in the field, the Hach HQ Series portable measuring device ensures your data is securely transferred via USB or optional Bluetooth*. Benefit from additional data validation when you connect your field measuring device to Claros Data Management software.

Sensors designed for all applications
With the HQ Series, we offer standard laboratory-type and robust field-type Intellical smart sensors to measure a wide variety of parameters including Total Dissolved Solids (TDS), Optical Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Temperature, Conductivity, and pH. Intellical smart probes are automatically recognized by HQ measuring devices, preserving calibration history and method settings to minimize errors and setup time. It contains proven technology that provides superior accuracy and response time even when measuring with challenging samples or in challenging work environments.

Rest assured: Hach service and support will always be there for you
Our Technical Support, Field Service, and Central Service Teams, with over 80 years of electrochemistry expertise, help you maximize device uptime, ensure data integrity, maintain operational stability, and reduce compliance risk. Never feel alone when you need support.

Choose from 4 models including the three-input HQ4000 series, two-input HQ2000 series, and single-input HQ1000 series. These measuring devices provide versatility in measurement in many ways, eliminating the need for numerous pieces of equipment.