HM Digital SM-1 In-Line TDS Monitor - 0-9990 ppm Digital Water Quality Tester 00799705707122 and colloidal silver

and colloidal silver

Extras: Includes three empty 100 ml bottles

allowing you to replace filters based on actual usage rather than estimated timeframes

EC = Electrical Conductivity

Replaceable Sensor (model SP-P2)

HM Digital SM-1 In-Line TDS Monitor - 0-9990 ppm Digital Water Quality Tester 00799705707122 and colloidal silverIdeal for any water filtration system, including reverse osmosis systems, coolers and much more. FEATURES Displays TDS level of a single water line. Highly efficient and accurate due to its advanced microprocessor technology. Auto Off function conserves battery power. The unit shuts off automatically after 10 minutes of non use. Wide Range 0 9990 ppm (From 0 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by