Yokogawa Portable pH Meter PH91

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Tough and Easy-to-Use Handheld pH/ORP Meter

Can Measure pH and ORP Stably and Accurately

Our long-selling Personal pH/ORP Meter is renewed as a Portable pH/ORP Meter with improved ease of use.
The pH/ORP portable meter can be calibrated using installed standard solutions data. It’s automatic temperature compensation and supportive functions enables accurate measurements. The sensor has a plastic body to prevent accidental damage.
With the ability to attach sensors to the main unit, our Portable pH/ORP Meter is designed for your convenience, making it easy to carry around and use whenever and wherever you need it.
The large backlit display on the main screen shows measured values, stability check signs, and electrode sensitivity indicator functions, providing an easy-to-read collection of information to support measurements.
The tough design makes it suitable for water quality control and research applications, as well as for validating inline pH/ORP analyzers and for grab-sample analysis.