There are many applications that call for the testing of water clarity. Turbidity is a measure of water clarity. Material suspended in water decreases the passage of light through the water, the level of light passing through the water can be measured to determine its clarity.
The Lutron TU-2016 is a compact hand held unit, which is perfect for applications where you need to test water clarity in a remote or non-laboratory environment. Designed to meet ISO 7027 the TU-2016 has a wide and automatic measuring range of 0-1000 NTU (Nephelometric Turbidity Unit). It offers a high resolution at 0.01 NTU / 1 NTU and has a large easy to read LCD display.