... the goal of controlling the machining precision SpecificationsWhiteness meter except solution or liquid samples, others all can test, such as: ... or d/0 as a illumination condition. Meanwhile, except solution or liquid samples, this instrument can be widely measured ... ---Size & Weight405X325X330mm & 6.5kg Digital Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)