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Perfect for growers’ water quality testing needs, the Oakton Waterproof pHTestr 20 measures from 1.00 to 15.00 pH with a resolution and relative accuracy of 0.01 pH. This hand-held tester also incorporates a large-screen display, automatic temperature compensation, memory back-up and auto-off feature to protect battery life. The Oakton Waterproof pHTestr 20 comes with a plastic storage case, hanging lanyard, four 1.5-volt batteries and a one-year manufacturer’s warranty (six-month on replaceable electrode). Unit is 6.5” in length with a 1.5” diameter. Available separately, 4.01, 7.00 and 10.01 calibration solutions are recommended for use with this tester.
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