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Digital pH Meter Pocket Size pH Test Pen 0 - 14 pH Measurement Range High Accuracy Water Quality Tester for Household Drinking Water Ponds Swimming...

Digital pH Meter Pocket Size pH Test Pen 0 - 14 pH Measurement Range High Accuracy Water Quality Tester for Household Drinking Water Ponds Swimming...

PH-009 IA Pen Type pH Meter Digital Tester Hydro;Simultaneously measure&display pH and temperature results;Temperature Compensation:0-50 centigrade de..

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