Inline Dual EC monitor •HM Digital DM-2EC dual in-line TDS Meter for use in pole window cleaning, marine aquatics, hydroponics •Highly efficient and accurate due to its advanced microprocessor technology. •Comes equipped with 1/4 fittings and Installs quickly and easily. •This meter allows you to measure and compare the conductivity (EC) of the water going into your system, vs the water coming out. It is a simple way to check the performance of your system and decide whether the filters need changing.Technical Details: Range: 0-9990 µS Accuracy: ¡À2% Cable Length: 46" (including sensor), shielded cables Sensor: Dual, 1/4" diameter for quick-connect fittings (model SP-3, included) Digital Calibration: Digitally factory calibrated to 1413 µS. Re-calibration can be done separately for each line. Power source: 2 x AA batteries (included) Battery life: Approx. 2 years Size: 11.6 x 6.8 x1.8 cm (4.6 x 2.6 x .7in.)
