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The higher the TDS level, the greater the probability of harmful contaminants. For example, a ppm of 1295 is displayed at 129 x10. Note that the "x10" in the display is very small. Displays total dissolved solids from 0-9990 and temperature from 0-99°C.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.