HM Digital SM-1 In-Line TDS Monitor - Digital Water Quality Tester 0-9990 ppm pool pH tester Auto-off: after 8 minutes on

Auto-off: after 8 minutes on non-use

including an extra large

Meters can be recalibrated with a mini-screwdriver

high protein content

HM Digital SM-1 In-Line TDS Monitor - Digital Water Quality Tester 0-9990 ppm pool pH tester Auto-off: after 8 minutes onSM 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