Secchi Discs

Water clarity is often estimated using a Secchi disk. Usually calculated based on vertical visibility, there are modifications for calculating horizontal visibilty in shallow water. The disc is slowly lowered into the water and when it is no longer visible, that secchi depth is recorded and used to compare water transparency. The theoretical limit of pure distilled water is about 80 meters vertically, and 83 meters horizontally.

4 Item(s)
Set Ascending Direction
4 Item(s)
Set Ascending Direction

NARROW BY Category

NARROW BY Price

  • Range: $45 - $216

NARROW BY BRAND