Digital tds meter water purifier tester and thermometer + carrying case, product description, get tds handheld digital tds meter with free spun filter at the most competitive price, kemflo spun filters helps in removing sediments from the water and increasing the life of ro membrane, digital ro tds handheld tds meter is used for checking the total dissolved solids(tds) in the water. Provides efficient way to compare rejection rates and test ro membrane, water filters and water filtration performance. Tds meter helps you to determine when your membrane needs to be replaced, tds meter is perfect for all basic water testing applications, test the clarity of your water, economy model is ideal for end-users, tds meter is effective and precise due to its advanced microprocessor technology, measurement range is 0-9990 ppm, digital thermometer built in is large and easy to read lcd screen, helps to test water conductivity, tds water testing, water hardness