Quick USB Turbidity Sensor (PL085)

Introduction
Turbidity is a measure of water’s lack of clarity and is an important indicator of water quality.
Water with high turbidity is cloudy, while water with low turbidity is clear.
The cloudiness isproduced by light reflecting off particles in the water; therefore, the more particles in the water,the higher the turbidity.
High turbidity can be detrimental to water quality as more sunlight is absorbed, causing an increase in water temperature. According to the USGS, the turbidity of surface water is usually between 0 and 50 NTU. Turbidity is often higher than this, however, especially after heavy rain when water levels are high.

Turbidity Sensor Specifications
Range : 0 to 200 NTU
Resolution : 0.25 NTU
Accuracy : ±2 NTU for readings under 25 NTU
±5% of readings above 25 NTU
LED wavelength: 890 nm
Standard : STABLCAL FORMAZIN STANDARD 100 NTU