... Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/ ... Specifications: ModelSBDY-1PSBDY-1Measurement Range0~100.0%Measurement SystemR457 Blue Light WhitenessAccuracy0.1Zero Draft0.1/10minStability0 ... Size & Weight405X325X330mm & 6.5kg Digital Whiteness Meter(Measurement System:R457 Blue Light Whiteness)