Test Strips, Test Form Strip, Test Type Test Strips, Testing Parameter One Free Chlorine, Parameter Measurements Included 0 to 6 ppm DPD-1 Reagent, Number of Tests 50, pH Resolution Not Applicable, Test Detects For DPD-1 Reagent, 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