LaMotte Sounding Weight & Calibrated Line

Marked 0 to 20m in 1m increments, this heavy nylon line can be used with secchi discs to determine turbidity of water or with the accompanying 2 lb. zinc sounding weight to test overall depths of ponds, lakes, rivers, etc. Line features a spring clip for quick attachments and is wound on a foam spool which doubles as a flotation device to prevent accidental loss of line if dropped overboard.