... the whiteness value of any substances. Such as: powder, board, paper, paste, sheet, clay, etc.² Chemical & Building ... etc.Technical Specifications: ModelSBDY-1PSBDY-1Measurement Range0~100.0%Measurement SystemR457 Blue Light WhitenessAccuracy0.1Zero Draft0.1/10minStability0 ... --- ---Size & Weight405X325X330mm & 6.5kg Digital Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, ...