... the goal of controlling the machining precision SpecificationsWhiteness meter except solution or liquid samples, others all can ... Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc.Application:This instrument based on the principle of ... %OutputRS232 Interface--- --- ---Size & Weight405X325X330mm & 6.5kg Digital Whiteness Meter (0-100%,LED display, touch panel, test paper, ...