Turbidity sensor is the use of optics , through the liquid solution and scattering rate of transmittance integrated to determine the turbidity case , since the amount of haze value is gradual , usually detected in a dynamic environment , the turbidity sensor acquisition value , the need for external control for AD conversion , the conversion to obtain the corresponding environment turbidity situation, so that the sensor can also need to produce a peripheral circuit detected in Features - Color: Sky-blue. - Size: 45.50X3.50X3.00cm/17.88X1.38X1.18 inch. - Material: Plastic. - Voltage: 3.3-5V. - Measuring range: 0-1000NTU. - Mainly used in washing machines, dishwashers and other equipment turbidity testing can also be used on electronic design, graduate design, electronic competition experiments and other applications. - Adopting great quality material, which let you use for a very long time. - Though it is simple in design, it's so practical when you use it. - The excellent workmanship of our product will bring you a good experience. - Easy and convenient to install and use, it is a very useful turbidity sensor. Package list: 1 x sensor