pH Test Paper, Test Form Paper, Overall Length 15 ft, Test Type pH Test, Testing Parameter One pH, Overall Width 1/4 in, Parameter Measurements Included 6 to 8 pH, Number of Tests 1,000, pH Resolution 0.2 pH, Test Detects For pH, Includes 15-Foot Roll of Test Paper, (10) Kits per Carton, Matching Color Chart, Minimum Percentage Measurement Not Applicable, Maximum Alkalinity Measurement 8 pH, Minimum Alkalinity Measurement 6 pH, Minimum Measurement One 6 ppm, Maximum Measurement One 8 ppm