2Pcs PH Meters Indicator Test Strips 1-14 Paper Litmus Tester Measurement Analysis. A booklet of yellow litmus test strips is displayed alongside a color chart ranging from 1 to 14, used for measuring acidity and alkalinity levels. Ideal for home diagnostic tests, the strips are compact, measuring approximately 45mm x 7mm, and suitable for testing liquids with a density above 0.01%.
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2Pcs PH Meters Indicator Test Strips 1-14 Paper Litmus Tester Measurement Analysis

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