Hach AquaChek Dip-and-Read Water Quality Test Strips, Multiparameter. 5 Tests. Multirange 50/PK
5 in 1 test strips are great  for quick, on-site evaluations of water quality with reliable results on every test.  These mulit-parameter test strips test for five water quality measurements on 1 strip:    Free Chlorine (0-10 mg/L)    Total Chlorine (0-10 mg/L)    Total Hardness (as CaCO3, 0-25 gpg and 0-425 mg/L)    Total Alkalinity  (as CaCO3, 0-240 mg/L)    pH (6.2 - 8.4)