pH Indicator Strips, Test Form Strip, Overall Length 3 1/8 in, Test Type pH Test, Testing Parameter One pH, Overall Width 1/4 in, Parameter Measurements Included 0 to 14 pH, Number of Tests 100, pH Resolution 1.0 pH, Test Detects For pH, Parameter Five Measurements Included Not Applicable, Parameter Four Measurements Included Not Applicable, Parameter Three Measurements Included Not Applicable, Parameter Two Measurements Included Not Applicable, Testing Parameter Four Not Applicable