The YSI 3017M is a DPD colorimetric analyzer for continuous measurement of free or total chlorine in drinking water and wastewater final effluent samples. This online analyzer can be used in municipal water applications to help monitor and control the chlorination or dechlorination process. The 3017M is low maintenance, uses EPA-approved DPD methodology, and is suitable for drinking water and wastewater permit reporting in the U.S. 

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