DollaTek 3.3 5V Turbidity Transducer Water Module Mixed Detection for Arduino

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. 98% of the genuine industrial alcohol is ONTU, 1000NTU everyone can When you buy it separately, you must remember that the light temperature and voltage will be affected. The light interference can be placed in the dark box to avoid the use of light. The voltage needs you to provide a stable voltage and current. The temperature requires a temperature sensor and the temperature is compensated. Do not completely immerse the sensor in water. Just measure the small round head of the split fork into the water and measure it. Do not wipe the top of the head. The sensor is realized by the refractive index of the light, so the light will also interfere with the sensor, and should be kept away from light interference when using.