Apparatus is used to determine the transparency of water in lakes, streams, oceans, and other bodies of water.
The disk is 23cm in diameter with alternating black and white quadrants.
By placing the disk in water and holding onto the string a user can measure the clarity and turbidity of water.
Kit includes:
- (1) Secchi Disk 23 cm
- (1) 3+ metres of line
- (1) Small handle
