meter,it can measure the whiteness of flour, starch and rice flour to attain the goal of controlling the machining precision ... industry: White Cement (powder), Paint (pasty), Coating (pasty), Plastic (boards), Steel Plate (boards), Ceramics (powder), Gypsum (powder), Wallpaper (paper/sheet), Porcelain ... Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)