QIUSUO Benchtop Sulfide Ion Meter S Ion Meter with  Measurement Range 0.003 to 32000 ppm Accuracy ±1% F.S. Resolution 0.001 0.01 0.1 1 Automatic Measurement Units ppm mg/L mol/L mmol/L for Testing Sulfide Ion

QIUSUO S Ion Meter Range 0.003 to 32000 ppm Resolution 0.001 0.01 0.1 1 Automatic Accuracy ±1% F.S. USB Communication Interface LCD Display Screen for Analyzing Sulfide Ion

QIUSUO Portable Sulfide Ion Meter Sulfide Ion Concentration Tester withAccuracy ±1% F.S. Range 0.003 to 32000 ppm Range -1999.9 to 1999.9 mV 2 to 5 Points Calibration Backlit LCD Display USB Communication Interface

QIUSUO Sulfide Ion Meter S Ion Meter with Range 0.003 to 32000 ppm Resolution 0.001 0.01 0.1 1 Automatic Accuracy ±1% F.S. 2 to 5 Points Calibration for Testing Sulfide Ion