Wildco® Oceanographic Secchi DiskDesigned for oceanographic applications, this Secchi disk is white on one side, black on the other. The disk is lowered into salt water until it just goes out of sight. Can also be used to evaluate water color. The disk is acrylic, 7.9" (20 cm) in diameter, and weighted underneath with a stainless eye bolt. Weighs 3 lbs. Made in USA. |
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