VTSYIQI Copper Ion Concentration Meter Cu Ion Tester with Range ±1999.9 mV Accuracy±1% F.S. Calibration Fluid Range 0.06 to 6400 ppm 2 to 5 Points Calibration Stores Up to 500 Data Sets USB Communication Interface

VTSYIQI Cu Ion Meter Copper Ion Concentration Meter with Accuracy±1% Range 0.06 to 6400 ppm F.S. 2 to 5 Points Calibration Optional 8 Concentration Calibration Points Automatic Temperature Compensation Calibration Fluid

VTSYIQI Sulfide Ion Meter S Ion Concentration Meter with Ion Concentration 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

VTSYIQI Benchtop Sulfide Ion Meter Benchtop Ion Concentration Tester with Ion Concentration Measurement Range 0.003 to 32000 ppm Calibration 2 to 5 Points Resolution 0.001 0.01 0.1 1 Automatic 500 Data Storage for Testing Sulfide Ion Concentration

VTSYIQI Silver Ion Meter Lab Ag Ion Concentration Meter with Ion Concentration Range 0.01 to 107900 ppm Calibration 2 to 5 Points USB Communication Interface LCD Display Screen for Testing Silver Ion Concentration Values

VTSYIQI Lab Silver Ion Meter Benchtop Ion meter for Silver with Ion Concentration Range 0.01 to 107900 ppm Accuracy ±1% F.S. Measurement Units ppm mg/L mol/L mmol/L Calibration 2 to 5 Points for Analyzing Silver Ion

VTSYIQI Benchtop Silver Ion Meter Ag Ion Concentration Tester with Ion Concentration Range 0.01 to 107900 ppm 2 to 5 Points Calibration Accuracy ±1% F.S. USB Communication Interface Measurement Units ppm mg/L mol/L mmol/L LCD Display Screen

VTSYIQI Benchtop Silver Ion Meter Ag Ion Concentration Meter Tester with USB Communication Interface Ion Concentration Range 0.01 to 107900 ppm Calibration 2 to 5 Points 500 Data Storage for Measuring the Concentration of Silver Ion

VTSYIQI Benchtop Ammonium Ion Meter NH4 Ion Meters Tester Ammonium Ion Detector with Range 0.1 to 18000 ppm Accuracy±0.5% F.S.Calibration Solutions 0.001 0.01 0.1 1 10 100 1000 10000 and 2 to 5 Points Calibration

VTSYIQI Lab NH4 Ion Meter Ammonium Ion Meter with Accuracy±0.5% F.S. Calibration Fluid Range 0.1 to 18000 ppm Automatic Temperature Compensation Resolution 0.001 0.01 0.1 1 Automatic 500 Data Storage Calibration Fluid

VTSYIQI Bench Top Ammonium Ion Meter Ammonium Ion Meters with Calibration Fluid Range 0.1 to 18000 ppm Accuracy±0.5% F.S. USB Communication Interface Auto-Read Function Calibration Solutions 0.001 0.01 0.1 1 Measurement Units ppm mg/L mol/L mmol/L

VTSYIQI Benchtop NH4 Ion Meter with Range 0.1 to 18000 ppm Accuracy±0.5% F.S.Calibration Fluid USB Communication Interface Auto-Read Function Measurement Units ppm mg/L mol/L mmol/L 2 to 5 Points