HI701 Hanna Free Chlorine Colorimeter - Checker HC

A simple, accurate, and cost-effective way to measure free chlorine. Free chlorine is the active form of chlorine used for the disinfection of drinking water, swimming pools, spas, and vegetable rinse water. Free chlorine in water is also harmful to a reverse osmosis membrane and needs to be monitored for removal from source water prior to being used. Designed as a more accurate alternative to chemical test kits, it provides quick, accurate results in a few easy steps.