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DFRobot turbidity sensor

Hello,
I want to know how accurate this turbidity sensor. According to my experience, he is quickly changing.
In addition, it doesn't give me 4.2 voltage in clear water. Maybe I have to open it and adjust the trimmer.
Please tell me your experiences.
Thank you in advance,
I want to know how accurate this turbidity sensor. According to my experience, he is quickly changing.
In addition, it doesn't give me 4.2 voltage in clear water. Maybe I have to open it and adjust the trimmer.
Please tell me your experiences.
Thank you in advance,
2021-07-01 02:46:07 Turbidity sensors measure the amount of light that is scattered by the suspended solids in water. Turbidity sensors are used in river and stream gaging, wastewater and effluent measurements, control instrumentation for settling ponds, sediment transport research, and laboratory measurements.
UPSers
lisacarter19794
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