Inline TDS/ Conductivity monitor, QC-1 is great as a Reverse Osmosis (RO) or Deionization (DI) monitor system •This Quick Check Monitor tests TDS and Conductivity levels. •With the push of a button, the QC-1 unit displays a green or red light to indicate good water quality or service required. •The QC-1 Monitor features eight programmable set points (by dip switch). •The Quick Check Monitor has bright LED lights. •The QC-1 is Factory Calibrated to 100 ppm NaCl. Re-calibration of this Quick Check Monitor is unnecessary. •This Quick Check Monitor comes equipped with Mur-lok Quick-Connect T-fittings (1/4 inch standard, also available in 3/8" or 1/2" ). •The QC-1 is great as a Reverse Osmosis (RO) or Deionization (DI) monitor. •This Quick Check Monitor is simple to use and can be installed quickly and easily. •TDS/EC Range: 0-5000 ppm (10,000 -S). •Max. Set Point: 50 ppm (100 -S). •Accuracy: -3%. •ATC: No. •Cable Length: 24.5" (including sensor). •Fittings: 1/4". •Power source: 4 x 1.5V button cell batteries (included). •Battery life: Approx. one year. •Size: 3" x 0.8" x 1.9" (7.6 x 2 x 4.7 cm).
