HM Digital DM-2 Commercial In-Line Dual TDS Monitor is designed for commercial and industrial applications and can be used residentially to determine when to change your whole house filter cartridges and reverse osmosis membranes. Measures the tap water coming in versus the purified water going out of your water filtration system at any time. Features an auto off function to conserve battery power and is quickly and easily installed and is efficient and accurate with its advanced microprocessor technology. Equipped with 1/4 quick connect T-fittings. Also available with 3/8 or 1/2 fittings. Factory calibrated. Can be recalibrated using a mini-screwdriver. Differences from the DM-1: Used in commercial/industrial applications, stronger, water resistant casing. Longer, waterproof shielded cables. Improved extra large LCD display. Calibration can be done individually or simultaneously on each line. Variable mounting bracket.
