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T: 514-354-2511
T: 1 800 463-4363
F: 514-354-6948
Oceanographic Secchi disk Environment

Oceanographic Secchi disk

Product Code:

Need more Info? (514) 354-2511 - 1-800-463-4363

The oceanographic secchi disk is, by definition, white on one side, black on the other. Lower it into shallow water until the white can no longer be seen and record its depth. Reverse the disk and lower it again, recording the depth for the black side. White side can be used with Forel-Ule Color Comparator Kit.



  • 200 mm (7-7/8”) in diameter
  • Same white acrylic used since 1938
  • Acrylic with stainless steel eye bolt and reversible weight
  • Sounding line kits include oceanographic secchis.



58-A25 Oceanographic Secchi Disks, 200mm, Acrylic


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