Hanna Instruments pH Tester

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The HI98103 Checker is the next generation of the original Hanna Checker pH tester. The Checker is the most popular pH meter in the world with over 1 million meters used since its introduction in 1991. From students to researchers, the Checker has been helping people with their pH measurement as a meter that is simple to use and operate. One-button operation Replaceable pH electrode ±0.2 pH accuracy Comes with all the necessary solutions and batteries- everything you need to get started measuring right away Great for environmental, field, and laboratory testing Show more