Test Strips, Test Form Strip, Test Type Test Strips, Testing Parameter One Free Chlorine, Parameter Measurements Included 0.01 to 10 ppm Free Chlorine, 0.01 to 4.5 ppm Free Chlorine, 0/01 to 6 ppm Free Chlorine, Number of Tests 100, pH Resolution Not Applicable, Test Detects For Free Chlorine, Parameter Five Measurements Included Not Applicable, Parameter Four Measurements Included Not Applicable, Parameter Three Measurements Included 0.01 to 6 ppm Chlorine. This item has been restricted from sale in the following state (s): []