Automatic darkening function, easy to use. The TDS table can recover test data in 5 seconds, which means that the TDS digital table has a precision of + 2 % and a measurement range of 0 9 990 ppm. The TDS pen tester has a compact size and light weight, easy to transport. The TDS digital tester has the ATC function, and test data is not affected by the water temperature. Digital salt content
