Description
Product Code: 623-2010
This sturdy plastic Secchi disk is 200 mm in diameter (7-7/8”) and has four quadrants, two white and two black. We include 20 meters of 1/8” diameter line on a styrofoam form that will float if dropped in the water. Plus instructions that are written at a basic level.
Most scientists use a Secchi Disk to determine the index of suspended matter in the water. The smaller the index – say, five feet – the more suspended material there is. The water is, obviously, less transparent, with a lower degree of visibility.
You can also use a Secchi Disk to measure the depth of light penetration and can derive a rough estimate of the extent of the littoral zone.
Please note that this unit is designed for occasional student use only and is not meant to replace the 171, 171-CL or 58-B10 Professional Secchi Disks.
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