Wide Range pH Test Strip, 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 0 to 14 pH, Number of Tests 600, pH Resolution 1.0 pH, Test Detects For pH, Includes Color Chart, Minimum Percentage Measurement Not Applicable, Maximum Alkalinity Measurement 14 pH, Minimum Alkalinity Measurement 0 pH, Maximum Percentage Measurement Not Applicable, Package Quantity 600