QIUSUO Ammonium Ion Meters NH4 Ion Meter with Range 0.1 to 18000 ppm Range -1999.9 to 1999.9 mV Resolution 0.001,0.01,0.1,1 Automatic Accuracy ±0.5% F.S. USB Communication Interface Stores Up to 500 Data Sets Calibration Fluid for Testing Ammonium Ion

QIUSUO Ammonium Ion Meter Benchtop Ion meter for NH4 with Calibration Liquids Range 0.1 to 18000 ppm Resolution 0.001,0.01,0.1,1 Automatic

QIUSUO Benchtop Ammonium Ion Meter NH4 Ion Meters with Calibration Fluid Range 0.1 to 18000 ppm Accuracy±0.5% F.S. USB Communication Interface

QIUSUO Lab Ammonium Ion Meter NH4 Ion Concentration Tester with Calibration Liquids Range -1999.9 to 1999.9 mV Calibration Solutions 0.001/0.01/0.1/1/10/100/1000/10000 2 to 5 Points Calibration Accuracy ±0.5% F.S.

QIUSUO Benchtop Ammonium Ion Meter NH4 Ion Meters Tester Ammonium Ion Detector with Calibration Liquids Range 0.1 to 18000 ppm Range -1999.9 to 1999.9 mV Automatic Temperature Compensation Function

QIUSUO Ammonium Ion Meter Portable Ammonium Ion Meter with Calibration Fluid Ion Concentration Range 0.1 to 18000 ppm 2 to 5 Points Calibration Display Resolution 0.001 0.01 0.1 1 Automatic

QIUSUO Ammonium Ion Meter NH4 Ion Concentration Meter with Standard Calibration Fluid Range 0.1 to 18000 ppm Accuracy ±1% F.S. for Testing NH3 Ion

QIUSUO Portable Ammonium Ion Meter Ammonium Ion Meter with Standard Calibration Fluid Range 0.1 to 18000 ppm Calibration 2 to 5 Points Range -1999.9 to 1999.9 mV Backlit LCD Display

QIUSUO NH4 Ion Meter Ammonium Ion Concentration Meter with Standard Calibration Fluid Range 0.1 to 18000 ppm Resolution 0.001 0.01 0.1 1 Automatic Range -1999.9 to 1999.9 mV Accuracy ±0.2 mV