1Turbidity sensor uses optics principles to synthetically estimate turbidity through the liquid light transmittance rate and scattering rate 2Since the amount of haze value is gradual, it is usually detected in a dynamic environment 3The turbidity value that turbidity sensor collects need connecting external control for AD conversion to get a corresponding environment turbidity situation, so that the sensor need a peripheral circuit to detect in a system 4With waterproof probe, mainly used in washing machines, dishwashers and other equipment for turbidity testing 5It can also be used on electronic design, graduate design, electronic competition experiments and other applications