Waterproof pocket pH tester, 1 to 3 points calibration, setup menu contains 5 options, suitable for measuring the pH of common aqueous samples, accuracy 0.01 pH.
Waterproof pocket pH tester, 1 to 3 points calibration, setup menu contains 5 options, suitable for measuring the pH of semi-solid, gel and viscous samples, accuracy 0.01 pH.
Waterproof pocket pH tester, 1 to 3 points calibration, setup menu contains 5 options, suitable for measuring the pH of soil and soft solids, accuracy 0.01 pH.