{"product_id":"wildco-623-2010-fieldmaster-secchi-disk-kit","title":"Fieldmaster (Educational Use) Secchi Disk, 20 cm Diameter with 20m Line","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2593\/8322\/files\/Fieldmaster.gif?v=1785259882\" alt=\"\" style=\"margin-right: 20px; margin-bottom: 1px; float: left;\" width=\"149\" height=\"29\"\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cstrong\u003eProduct Code: 623-2010\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003eThe 623-2010 Fieldmaster® Secchi Disk Kit is an economical, student-friendly limnological Secchi disk designed to measure water transparency, turbidity and light penetration in lakes, ponds, reservoirs and slow-moving rivers. Built to the accepted industry standard, the 200 mm (7-7\/8 in.) diameter disk features four quadrants—two black and two white—to provide consistent, repeatable water clarity measurements that can be compared between sampling locations and over time.\u003c\/p\u003e\n\u003cp\u003eConstructed from heavy-duty ABS plastic, the kit includes a 20 m braided polyester line wound on a floating plastic winder, making it easy to deploy and retrieve during fieldwork. The attached stainless steel eye bolt and weight keep the disk stable in the water column for accurate readings. The 623-2010 is widely used in environmental education, fisheries, limnology, aquaculture and water quality monitoring, providing a simple and reliable method for assessing suspended solids and estimating the depth of the photic (light-penetration) zone. \u003cstrong\u003e\u003ca href=\"https:\/\/dynamicaquasupply.com\/pages\/how-to-use-a-secchi-disk\"\u003eHow to use a Secchi Disk\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003ePlease note that this unit is designed for occasional student use only and is not meant to replace the \u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/dynamicaquasupply.com\/products\/secchi-disc-black-and-white?_pos=1\u0026amp;_sid=bede7be4e\u0026amp;_ss=r\" style=\"color: #2b00ff;\"\u003e171\u003c\/a\u003e\u003c\/span\u003e, \u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/dynamicaquasupply.com\/products\/secchi-disc-black-and-white-with-20m-line?_pos=1\u0026amp;_sid=3b85a9741\u0026amp;_ss=r\" style=\"color: #2b00ff;\"\u003e171-CL\u003c\/a\u003e\u003c\/span\u003e or  \u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/dynamicaquasupply.com\/products\/wildco-limnological-secchi-discs-20-cm-or-30-cm-diameter?_pos=1\u0026amp;_sid=62046ef16\u0026amp;_ss=r\" style=\"color: #2b00ff;\"\u003e58-B10\u003c\/a\u003e\u003c\/span\u003e Professional Secchi Disks.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Wildco Fieldmaster® Secchi Disk Kit\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIndustry-standard 200 mm (7-7\/8 in.) Secchi disk\u003c\/li\u003e\n\u003cli\u003eFour-quadrant black-and-white design\u003c\/li\u003e\n\u003cli\u003eHeavy-duty ABS plastic construction\u003c\/li\u003e\n\u003cli\u003eIncludes 20 m braided polyester line\u003c\/li\u003e\n\u003cli\u003eFloating line winder for convenient handling\u003c\/li\u003e\n\u003cli\u003eStainless steel eye bolt and attached weight\u003c\/li\u003e\n\u003cli\u003eMeasures water transparency and turbidity\u003c\/li\u003e\n\u003cli\u003eIdeal for freshwater field studies and environmental education\u003c\/li\u003e\n\u003cli\u003eLightweight and easy to transport \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Wildco","offers":[{"title":"Default Title","offer_id":43279612969091,"sku":"623-2010","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2593\/8322\/files\/623-2010.jpg?v=1755475974","url":"https:\/\/dynamicaquasupply.com\/en-us\/products\/wildco-623-2010-fieldmaster-secchi-disk-kit","provider":"Dynamic  Aqua-Supply","version":"1.0","type":"link"}