HM Digital QC-1 Quick Check TDS/Conductivity Monitor PL Bags Open a pH 4

Open a pH 4

5 VDC USB Adapter (included)

the COM-300L combines five critical water quality parameters in one waterproof

and plants consistently needed a larger system

HM Digital QC-1 Quick Check TDS/Conductivity Monitor PL Bags Open a pH 4Press the "Push to Check" button for an instant water quality check! FEATURES With the push of a button, the unit displays a green or red light, indicating good water quality or service required, respectively. Tests for TDS or conductivity levels. Eight programmable set points (by dip switch). Bright LED lights. Simple to use. Factory Calibrated to 100 ppm NaCl. Re calibration is unncessary. Comes equipped with Mur lok Quick Connect T fitting (1 4