Hanna HI-701 Free Chlorine Handheld ColorimeterThe Hanna HI 701 Free Chlorine Handheld Colorimeter is a compact and highly accurate device designed for measuring free chlorine levels in water. Ideal for water treatment, pool maintenance, and environmental monitoring, it provides lab quality results with the simplicity of a digital device. This portable colorimeter uses a simple one button operation and a digital LCD display to eliminate the guesswork of visual color comparisons. With precise
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