1.[ Correct and reliable]: Professional TDS, EC and Temperature Pen 3 1 Inch. Sensitive algorithms, which are upgraded with microprocessors and make the test accuracy more accurate, support the data lock, you only need to press the 'Waiting' button, you can save the current test data. The titanium alloy probe has a high test accuracy that is not affected by water temperature and magnetic fields, a reliable automatic temperature compensation (ATC). Test the purity of drinking water to ensure that it is y. The ozmoz system works properly, testing the other water quality and assistant, whether the filter needs to be replaced. In 5 minutes to save the battery. High TDS levels also indicate the presence of toxic minerals that are harmful to . High tank hunters will harden the water, cause contamination in the pipes, cause dry hair, stains on tables, and also make kitchen utensils useless. A PPM counter can help you avoid the above problems. According to EPA, the maximum TDS concentration for drinking water is 500 ppm.