VTSYIQI Lab Automatic Polarimeter Digital Polarimeter Optical Rotation Instrument with Range ±45°(Optical Rotation) Accuracy ±(0.01+Measuring Value×0.05%)°(Optical Rotation) Repeatability ≤0.01° for Measuring Optical Rotation

VTSYIQI Lab Benchtop Conductivity Meter Conductivity Benchtop Meter with Standard Solution Identification Function 146.6μS/cm 1408μS/cm 12.85mS/cm Screen Dimension 4 inches Conductivity Solutions Measuring Range 0.00μS/cm～100mS/cm

VTSYIQI Lab Benchtop Conductivity Meter for All Kinds of Aqueous Conductivity and TDS Measurement with Continuous/Balanced Measurement Mode Automatic/Manual Temperature Compensation TDS Range 0.00mg/L～100g/L

VTSYIQI Lab Benchtop Conductivity Meter with Automatic Recognition of 4 GB Conductivity Standard Solutions 146.6μS/1408μS/12.85mS/111.3mS Conductivity Solutions Conductivity Range 0.00μS/cm～200mS/cm TDS Range 0.00mg/L～100g/L

VTSYIQI Lab Benchtop Conductivity Meter with Simple Bracket Manual Temperature Compensation Conductivity Solutions Measuring Range 0.00μS/cm～100mS/cm Min Resolution Ratio 0.01μS/cm Continuous Measurement Mode

VTSYIQI Lab Benchtop Conductivity Meter with TDS Range 0.00mg/L～100g/L 1 Point Calibration Conductivity Solutions Conductivity Range 0.00μS/cm～200mS/cm 50 Sets Data Storage Continuous Measurement Mode

VTSYIQI Lab Benchtop pH Meter Benchtop PH Tester with PH Buffer Powder Balanced /Continuous Measurement Mode 4-inch LCD Display 2 Points Calibration mV Measuring Range -1599～1599mV pH Measuring Range 0.00～14.00pH Manual Temperature Compensation

VTSYIQI Lab Benchtop pH Meter PH Tester with PH Buffer Powder Movable Bracket 3 Points Calibration Instrument Level 0.01 mV Measuring Range -1999～1999mV pH Measuring Range -2.00～18.00pH 50 Sets Data Storage Auto-Shut Off Function

VTSYIQI Lab Benchtop PH Meter Tester with PH Buffer Powder Manual Temperature Compensation Balanced /Continuous Measurement Mode LCD Display 2 Points Calibration mV Measuring Range -1599～1599mV pH Measuring Range 0.00～14.00pH

VTSYIQI Lab Benchtop pH Meter with 2 Points Calibration PH Buffer Powder LCD Display Balanced/Continuous Measurement Mode mV Measuring Range -1800～1800mV pH Measuring Range 0.00～14.00pH Manual Temperature Compensation Function

VTSYIQI Lab Benchtop pH Meter with 3 Points Calibration PH Buffer Powder Automatic/Manual Temperature Compensation 50 Sets Data Storage mV Measuring Range -1999～1999mV pH Measuring Range -2.00～18.00pH Auto-Shut Off Function

VTSYIQI Lab Benchtop pH Meter with 5 Points Calibration 500 Sets Data Storage PH Buffer Powder mV Measuring Range -2000~2000mV pH Measuring Range -2.00～20.000pH Automatic/Manual Temperature Compensation 6-inch LCD Display