Effect of temperature on TDS: As the temperature of the water increases, so does the conductivity of the water; where TDS in water is directly related to conductivity. . Temperature affects conductivity by increasing the mobility of ions and, in addition, the solubility of many salts and minerals. (Copied from Google) I tested several different water samples and the meter was accurate. Just make sure all samples are the same temperature, otherwise the same water source will give different readings at different temperatures. I hope this will help users for the first time.
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