Keyestudio Arduino water turbidity sensor V1.0

The Keyestudio Arduino V1.0 turbidity sensor detects water quality by measuring the turbidity level. The principle is to convert the current signal itself to a voltage output through a circuit. Its detection range is 0-3.5% (0-4550NTU), with an error range of ± 05% F*S. In use, measure the voltage value at the end of the sensor signal, then calculate the water turbidity with a simple calculation formula. The turbidity sensor has both analogue and digital signal output modes. The module has a slide switch. When you slide the switch to the A end, connect the signal end to the analog port, you can read the analog value to calculate the output voltage to get the water turbidity degree. If you slide to the D end, connect the signal end to the digital port, you can see if the water is turbid by using the HIGH or LOW level output. By turning the blue potentiometer on the sensor, you can adjust the sensitivity of the sensor. Turbidity sensors can be used in water quality measurements in rivers and streams, wastewater and effluent measurements, sediment transport research and laboratory measurements.

Note:
The top of the probe is not watertight. Only the transparent bottom part can be placed in the water.