HM Digital In-Line Dual TDS Monitor

Displays TDS levels of the feed water and product water with in and out electrode probes. 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. Dual Range 0-9990 ppm. Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Comes equipped with Mur-lok Quick-Connect T-fittings. Installs quickly and easily.