meter,it can measure the whiteness of flour, starch and rice flour to attain the goal of controlling the machining precision ... industry: Flour (powder), Starch (powder), Salt (powder), Sugar (powder), Fish Balls (paste),etc² Paper making industry: Paper Factory (paper/sheet), Printing ... Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)