An ideal viewer for students studying aquatic plant and animal life or using secchi disks
They look down the 26-inches tube at the submerged disk, they encounter no surface glare or internal reflection, resulting in more accurate turbidity readings
Constructed of crush-resistant tubing with flotation collar, neoprene viewing mask and handle

Technical Details

Product Details

Package Dimensions
Width : 7 inch
Height : 5.7 inch
Length : 27.8 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B00FGEHNU0