Test Strips Test Form Strip Test Type Test Strips Testing Parameter One Free Chlorine pH Total Alkalinity Total Chlorine Total Hardness Parameter Measurements Included 0 to 10 ppm Free Chlorine 0 to 10 ppm Total Chlorine 0 to 240 ppm Total Alkalinity 0 to 425 ppm Total Hardness 6.2 to 8.4 pH Number of Tests 50 Test Detects For Free Chlorine pH Total Alkalinity Total Chlorine Total Hardness Parameter Five Measurements Included 6.2 to 8.4 pH