1/4" diameter for quick-connect fittings (model Sp-3

fresher water

Did you Know

470 mV) recommended for optimal accuracy

Long-lasting: 10

HM Digital SM-1 In-Line TDS Monitor - Single Line Digital Water Quality Meter ORP electrode 1/4" diameter for quick-connect fittingsSM 1: In line Single TDS Monitor The SM 1 is provides an easy to read single line TDS monitor that provides a digital readout. It is ideal for any water filtration system, including reverse osmosis systems, coolers and much more. FEATURES: Displays TDS level of a single water line Efficient and accurate Auto Off function conserves battery power. (Shuts off automatically after 10 minutes of non use) Factory Calibrated: our meters are calibrated with a