QIUSUO K Ion Meter Portable Potassium Ion Meter with Standard Calibration Liquids Range From 0.04 to 39000 ppm 2 to 5 Points Calibration Accuracy ±1% F.S. Measurement Units ppm mg/L mol/L mmol/L

QIUSUO Lab ABBE Refractometer Binocular Refractometer Binocular Abbe Refractometer with 1.3000-1.7000nD 0-95% Brix Accuracy ±0.0003 Digital Display of Temperature Measurement of Refractive Index nD

QIUSUO Lab ABBE Refractometer Monochromatic Refractometer with Refractive Index nD 1.3000-1.7000 Accuracy(nD) ±0.0002 Dissolved Solids Brix 0-95% Observation Mode Monocular for Sugar Food Chemical

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 Lab Binocular ABBE Refractometer Abbe Digital Refractometer Brix Refractometer Binocular Abbe Refractometer with Accuracy ±0.0003 Range 1.3000-1.7000 nD 0.0-95% Brix for Liquid and Solid Substances

QIUSUO Lab Bromide Ion Meter Tester with Standard Solution Ion Concentrationr Range0.4~81000 ppm Range ±1999.9mV 2 to 5 Point Calibration Expanded Memory Stores or Recalls Up to 500 Data Sets

QIUSUO Lab Cadmium Ion Meter Cd Ion Concentration Meter with Resolution 0.001 0.01 0.1 1 Automatic Calibration Fluid Range 0.1 to 11200 ppm Accuracy±1% F.S. USB Communication Interface 2 to 5 Points Calibration

QIUSUO Lab Calcium Ion Meters Portable CA Ion Meter with Calibration Fluid Range 0.02 to 40100 ppm USB Communication Interface Calibration Solutions 0.001 0.01 0.1 1 10 100 1000 10000

QIUSUO Lab Cd Ion Meter Cadmium Ion Meters with Range 0.1 to 11200 ppm Accuracy ±1% F.S.Cadmium Standard Solutions Automatic Electrode Diagnosis USB Communication Interface for Testing Cadimum Ion

QIUSUO Lab CN Ion Meter Cyanide Ion Meters with Range 1999.9 mV Ion Concentration 0.03 to 260 ppm Accuracy±1% F.S. 2 to 5 Point Calibration Automatic Temperature Compensation

QIUSUO Lab Colorimeter Touch Screen Colorimeter with 6mm Measuring Aperture Repeatability ΔE*ab≤ 0.03 for Coating Ceramic Plastic Paint Color Measurement Comparison

QIUSUO Lab Copper Ion Concentration Meter Cu Ion Meters with Range ±1999.9 mV Accuracy±1% F.S. Standard Calibration Fluid Range 0.06 to 6400 ppm Stores Up to 500 Data Sets 2 to 5 Points Calibration

QIUSUO Lab F Ion Meter Fluoride Ion Concentration Tester with Calibration Liquids Calibration Solutions 0.001/0.01/0.1/1/10/100/1000/10000 Accuracy ±0.5% F.S. Range 0.02 to 1900 ppm Setup Menu Allows Setting the Number of Calibration Points

QIUSUO Lab Ion Meter for I Iodide Ion Concentration Tester with Accuracy±1% F.S. Standard Calibration Solutions Ion Concentration Range 0.04 to 39000 ppm Resolution 0.001 0.01 0.1 1 Automatic

QIUSUO Lab Liquid Colorimeter Desktop Liquid Colorimeter with Wavelength Range 360-780nm Semiband Width 5nm Integrating Sphere Size Φ40mm Colorimetric Values ΔE*ab within 0.015 for Liquid Chromaticity Measurement