Chlorine Dioxide Test Strips

These Residual Chlorine Dioxide Test Strip detects levels from 0-10ppm in increments of 0.25, 0.5, 1, 3, 5, and 10. The color chart varies from a light to dark pink. Chlorine dioxide is less reactive than chlorine or ozone, which means lower concentrations of chlorine dioxide can be used to gain effective disinfection.