Free Chlorine, Bromine, Total Chlorine, Alkalinity, pH
 
Designed specifically for on-site use by service pros, each vial contains 100 strips. Packed in 12-packs or 100-packs and offered by distributors in a la carte volumes. Insta-TEST® PRO 400 Plus measures Free Chlorine 0 to 10 ppm, Bromine 0 to 20 ppm, Total Chlorine 0 to 10 ppm, Alkalinity 0 to 240 ppm and pH 6.2 to 9.0 with instant results. The instructions are in English, Spanish, and French