High Range pH Test Strips, Test Form Strip, Overall Length 3 1/4 in, Test Type pH Test, Testing Parameter One pH, Overall Width 1/4 in, Parameter Measurements Included 7 to 14 pH, Number of Tests 600, pH Resolution 0.5 pH, Test Detects For pH, Includes Color Chart, Minimum Percentage Measurement Not Applicable, Maximum Alkalinity Measurement 14 pH, Minimum Alkalinity Measurement 7 pH, Maximum Percentage Measurement Not Applicable, Package Quantity 600