... , Whiteness Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc ... .0%Measurement SystemR457 Blue Light WhitenessAccuracy0.1Zero Draft0.1/10minStability0.2/10minRepeatability0.2Power Supply220V+/-10%OutputRS232 Interface--- --- ---Size & Weight405X325X330mm & 6.5kg ...