Secchi dish

Specification of Secchi dish

Product Description

A fast, easy way to • determine turbidity (degree of visibility) in shallow waters. Designed for use in shallow water, the secchi disk works best in a shaded place. Determines the index of suspended matter in the water. The smaller the index, the more material there is suspended. The disk can also be used to measure the depth of light penetration and can derive a rough estimate of the extents of the littoral zone. Kit includes 20 cm dia. disk and instructions. Th