I am using a MJKDZ turbidity sensor and the voltage readings are different

I am using the MJKDZ turbidity sensor, and just getting the voltage to check, but when I run it I get different voltage every time I keep in same water. Plus more the particles in water more the voltage value as I assume it, but I am getting the opposite of it, for normal water the value fluctuating from 1 to 2 and for muddy water is is below 1. Can you pls tell a solution and how to convert the voltage to ntu

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Post your code and schematic.

Please post a link to the product page for the sensor.

In addition to the code and schematic of the wiring, a close up, focused photo of your setup would help.

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