TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water

What is TDS and why should you care TDS = Total Dissolved Solids, which is any salt, metal, or mineral in the water. The lower the TDS level in the water, the more efficiently your body's cells can use the water. Conversely, higher TDS levels can indicate water that is more difficult for your body to use and has more contaminants that can pose health risks. A must-have tool for RO systems The ppm pen is the perfect tool for measuring and tracking your water levels of TDS to make sure your water filter is doing its job. With this water ppm tester, you won't just need to take the filter manufacturer's word that it reduces TDS in your water; you can put it to the test!