Envco – Environmental Equipment

Measure the turbidity or degree of visibility of the water you're testing with our secchi disk. Many things have changed in the past 70 years - but not the Wildco secchi disk! We've used the same white acrylic in its manufacture since our founding in 1938. Confidently compare your results with data from earlier decades!

Specifications:· 200 mm (7-7/8") diameter acrylic with stainless steel bolt, Two white, two black quadrants, Weights and instructions included.

New! 300 mm (11-3/4") diameter secchi for deep waters. Sounding line kits include limnological secchis.

Ordering Information
58-B10 Limnological Secchi, 200 mm
58-B20 Limnological Secchi, 300 mm
58-A25 Oceanographic Secchi, 200mm

62-C15 Polyester Line, 3/16, 100’
63-A12 Calibrated Line, 1/8”, float, 20 m
7900-A12 Uncalibrated Line, 1/8”/float, 20 m

Fiberglass Measuring Reel
Often used with Secchi disks to measure depth instead of line. Printed on two sides - feet, tenths, hundredths; meters, cm, mm.
7900-K70 Measuring Reel, 100’ (30 m)
7900-K75 Measuring Reel, 200’ (60 m)
7900-K80 Measuring Reel, 300’ (90 m)