Know our pH meters
Accurate pH measurement is essential for maintaining water quality, process efficiency, and product consistency. Hach® pH meters deliver reliable and precise results across laboratory, field, and process applications, helping teams confidently monitor and manage water conditions. For faster, simplified testing, Hach’s SL250 and SL1000 Portable Parallel Analyzer enable efficient multi-parameter analysis with reduced manual effort and improved consistency.
HQ440D Benchtop
pH Meter
The Hach HQ440d multiparameter laboratory meter simplifies water quality testing with plug-and-play support for any two IntelliCAL™ probes. Designed for efficient and accurate measurements, it automatically recognizes testing parameters, calibration history, and method settings to reduce setup time and minimize errors. Its intuitive interface, ultra-bright display, and compact benchtop design help improve productivity while saving valuable laboratory space. for Conductivity, Dissolved Oxygen, ORP, and ISE
HQ430D Benchtop
pH Meter
The Hach HQ440d flexible benchtop meter streamlines laboratory testing for critical water quality parameters with support for any IntelliCAL™ smart probe, including pH, conductivity, dissolved oxygen, BOD, ORP, ammonia, ammonium, fluoride, chloride, sodium, and temperature. Its intuitive interface, guided calibration routines, and automatic probe recognition help reduce errors and ensure accurate, reliable measurements. IntelliCAL™ smart probes store calibration data directly in the probe for simplified workflows and complete GLP traceability, while USB connectivity, a bright display, and multi-parameter capabilities improve productivity and save valuable laboratory space.
HQ430D Benchtop
pH Meter
The Hach HQ440d flexible benchtop meter streamlines laboratory testing for critical water quality parameters with support for any IntelliCAL™ smart probe, including pH, conductivity, dissolved oxygen, BOD, ORP, ammonia, ammonium, fluoride, chloride, sodium, and temperature. Its intuitive interface, guided calibration routines, and automatic probe recognition help reduce errors and ensure accurate, reliable measurements. IntelliCAL™ smart probes store calibration data directly in the probe for simplified workflows and complete GLP traceability, while USB connectivity, a bright display, and multi-parameter capabilities improve productivity and save valuable laboratory space.
