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Grainger carries a variety of soil testers manufactured by well-known, respected companies in the industry. Find an Orbeco Hellige pH test kit that uses the colorimetric testing system to help determine the acidity or alkalinity of soil. A LaMotte soil test education kit includes reagents for 25 demonstrations, and a soil texture unit can determine percent clay, silt and sand in a sample and includes reagents for 50 tests. Get the soil testers you need at Grainger!