HM Digital DM-3 Inline Dual TDS/EC Monitor Meter, Upgraded DM-2 DM-2EC

Highly efficient and accurate due to its advanced microprocessor technology Displays TDS levels of the Feed Water and Product Water with in & out electrode probes Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. The DM-3 features digital calibration Diagnostic error messaging Shielded sensor cables Comes equipped with two 1/4 inch T-fittings (Also available with 3/8″ or 1/2″ fittings) Range: EC: 0~9999μS/0~9.99mS TDS: 0~5000ppm/ 0~5ppt Resolution: EC: 0.1μS (0~99.9) 1μS (100~999) 10μS (1000~9990) 0.01mS (0.00~9.99) TDS: 0.1ppm (0~99.9) 1ppm (100~999) 10ppm (1000~5000) 0.01 ppt (0.00~5.00) Accuracy: ±2% Conversion Factor: NaCl (avg. 0.5) Cable Length: 1.2m /3.9ft, shielded cables Sensor: Dual, 1/4″ diameter for quick-connect fittings (model SP-3, included) Digital Calibration: Digitally factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line. Power Source: 2 x AA batteries (included) Size: 11.6 x 1.9 x 7.0 cm (4.6 x 0.7 x 2.8 in) Weight: 225 g (7.9 oz.)