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Introducing the ExStik Chlorine Meter - CL200 from Extech! This revolutionary chlorine meter is perfect for anyone who needs to measure direct total residual chlorine levels in water samples ranging from 0.01ppm to 10ppm. Unlike traditional colorimeters and spectrophotometers, the CL200 provides non-subjective measurements that are not affected by interferences caused by factors like sample color, turbidity, light, or pollutants. With its durable design, easy-to-read dual display, and waterproof construction, the Extech Chlorine Meter is the ideal tool for anyone looking for accurate and reliable chlorine measurements in a variety of applications, including industrial, commercial, and residential settings.