The independently made Tester displays the total dissolved solids (TDS) in water. With this water tester, you can now put a number on what your taste buds know: water tastes different from city to city and from brand to brand in bottled water. The reason for the different tastes is that what you usually drink is water (hydrogen and oxygen) and other dissolved substances. The tester will empower you to be able to evaluate the cleanliness of whatever water you're drinking; bottled, tap, filtered, etc. The best water will show a reading of 000.
The number represents the amounts of detectable dissolved solids in parts per million that exist in your water sample. The meter is primarily used to indicate ZeroWater filter replacement at 006. It may also be used as a simple method to compare water quality by displaying the Total of the Dissolved Solids (TDS) in parts per million only. The meter does not specify what substances comprise the Total. The meter should not be used to assess the safety or purity of water, which should only be undertaken by a qualified laboratory.