Secchi disk

(6 customer reviews)


This Secchi disk can be used to measure turbidity, otherwise known as water clarity. It can also be used to measure water depth! Comes with an easy-to-read reel. 

Bulk discounts available. You can get 10% off 5 or more, or 15% off 10 or more.

In stock (can be backordered)

SKU: WR0024 Categories: ,



20 cm diameter
Opposing black and white quarters
Calibrated line attached, measuring tape reel


Turbidity is a measure of the ability of light to pass through water, essentially the measurement of the water’s murkiness. Measuring murkiness gives an estimate of suspended solids in the water. Turbidity measurements also take into account algae and plankton present in the water. Secchi discs’ ropes are marked at half meter and meter intervals. You measure how far you can lower the disc into the water until you can’t see it anymore. This is known as the secchi depth. If your disc touches the ground, but you can still see it, you can record ‘bottom visible’.

Additional information

Weight 1.1 kg
Dimensions 28 × 22 × 8 cm

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