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Your cart is empty.Use this clear, redesigned, 60-cm tube to accurately measure the turbidity of shallow or flowing bodies of water where a Secchi disk can't be used. A single operator controls the water-level discharge from the tube by gently pushing it against the ground to activate the stop plunger when the 45-mm Secchi-disk design is visible. This action immediately stops the flow of water to accurately and efficiently measure the water's transparency. This unique tube features a side scale with centimeter and Nephelometric Turbidity Unit (NTU) markings.
DrMike
Reviewed in the United States on July 24, 2023
This tube is very easy for one person to use! The rate of water release is proportional to how hard the user presses the tube against a flat rock or other hard surface until the Secchi disk becomes visible. The scale along the length of the tube has both centimeters and approximate NTUs (from about 10 to >240). The 26.25-inch length of this tube makes it very manageable and easy to store.
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