Checker 1 Economical pH Tester

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