Chlorine is a strong oxidant used to disinfect drinking water, process wastewater and provide sanitation that is essential to protecting public health.
Utilizing Chlorine gas requires special storage, safety and handling considerations and is usually utilized in large municipalities. Hypochlorite solutions can be manufactured onsite, is safer to handle but may cost slightly more than utilizing chlorine gas. Chlorine is a member of the Halogen group of chemicals which include Bromine, Iodine and Ozone. These halogens are oxidizers and will interfere with the free chlorine readings picked up by the sensor and as such, a strong presence of these chemicals in solution could create false reading for the presence of Chlorine.