HM DIGITAL TDS-EZ Water Quality Tester Instruction Manual
HM DIGITAL TDS-EZ Water Quality Tester Specifications Range 0-9990 ppm Accuracy ±4-3% Batteries 2 x 1.5V (LR44) Calibration Factory calibrated to NaCl 342 ppm; Adjustable Dimensions 15.5 x 3.1 x…