HM Digital QC-1 Quick Check TDS/Conductivity Push-To-Test Monitor with Set Points, +/- 3% Accuracy

QC-1: Quick Check TDS/Conductivity Monitor This basic EC/TDS monitor provides an entry level monitor with its “Push-to-Check” button giving you an instant water quality check! With the push of a button, the unit displays a green or red light, indicating good water quality or service required, respectively. FEATURES Eight programmable set points (by dip switch). Bright LED lights Simple to use – Quick Easy Installation Factory Calibrated to 100 ppm NaCl. Re-calibration is unnecessary. Comes equipped with one 1/4 inch T-fitting (also available in 3/8″ or 1/2″) Excellent Reverse Osmosis (RO) or Deionization (DI) monitor PRODUCT DESCRIPTION TDS/EC Range: 0-5000 ppm (10,000 µS) Max. Set Point: 50 ppm (100 µS) Accuracy: ±3% ATC: No Cable Length: 24.5″ (including sensor) Fittings: 1/4″ Power source: 4 x 1.5V button cell batteries (389-A) (included) Battery life: Approx. one year Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.) Weight: 39.7 g (1.4 oz.) not including sensor