Hach has a range of pH sensors, pH meters, test strips and more to help make your pH testing more accurate and more reliable. Read about measuring pH in water, why you should monitor pH, products for monitoring pH and more.

Elevate your pH and ORP measurements with Hach ® 's line of trusted pH sensors and probes. Our patented diff erential electrode measurement technique guarantees precision and reliability, minimizing downtime and maintenance compared to traditional pH sensors and probes.

Each Hach ® pH buffer is NIST traceable for optimum pH electrode calibration with an accuracy of ±0.02 pH at 25° C. For critical applications Hach offers Certified Conductivity Standard Solutions with a Certificate of Conformity and Traceability from our accredited laboratory.

Hach ® provides a wide range of pH meters that deliver precise and reliable results in various settings. These pH meters are crucial for detecting pH levels, which can affect water taste, color, shelf-life, product stability, and overall quality.

Elevate your water quality testing with standard cell solutions – the ultimate tool for accurate pH and ORP measurements. Our reliable chemistry standards offer consistent and trustworthy results. Experience ease of use and precision in a wide range of pH and ORP applications.

Discover Hach's pH sensors, meters, test strips, and more for accurate and reliable pH testing. Learn about water pH measurement, the importance of pH monitoring, and explore our pH monitoring products.

All Hach pH buffers are NIST traceable for optimum pH electrode calibration with an accuracy of ±0.02 pH at 25 °C. For all Hach buffers, a specific Certificate of Analysis is available for download from www.hach.com: Support/Service, Certificate of Analysis menu, using product part number and batch number.

Hach pHD sc Process pH Sensors with Integrated Digital Electronics for Plug and Play Capability with Hach's Digital SC Controllers. The inline process pH sensors feature exceptional performance due to the Differential Electrode Measurement Technique.

pH meters will give the best accuracy and sensitivity, measure across the full pH range, and can be used with most water samples, compared to colorimetric or test strip measurements. However, they require regular calibration with pH buffer solutions.

Hach’s patented differential electrode measurement technique ensures more accurate pH readings, providing increased reliability to reduce downtime and maintenance for measuring pH over traditional pH sensors.