Description Are you looking for a professional, yet affordable turbidity sensor? Are you in search of a sturdy, trustworthy tool that can do multiple works at once? If yes, look no further! Our professional turbidity sensor must meet your needs. It is one of the best choices for you. Features - Color: Sky-blue. - Size: 45.50X3.50X3.00cm/17.88X1.38X1.18 inch. - Material: Plastic. - Voltage: 3.3-5V. - Measuring range: 0-1000NTU. - This turbidity sensor adopts optical principle to detect the turbidity of liquid solution. - This module converts the current signal of the sensor to module output voltage. The lower the output voltage is, the high the turbidity value. - Suitable for turbidity measurement and control of washing machines, dishwashers, industrial controls and environmental wastewater collection. - The module adopts electronic components, ensuring the accuracy of turbidity measurement. - It is manufactured with professional technology to ensure the of the product and can work for a long time. Made of material for a long time and use. It has a simple design, but very practical in use, giving you a good using experience. Turbidity is the measurement of particulate matter in water. It requires the analog port of the MCU to read the analog value for calculation. It needs turbidity calibration liquid to calibrate. It is not the multimeter that directly measures the voltage. Turbidity sensor is the use of optics, through the liquid solution and scattering rate of transmittance integrated to determine the turbidity case.