Portable Whiteness Tester 1)can test powder,pasty,boards,paper/sheet,clump etc; 2)LCD Display; 3)MOQ:1pc; 4)Warranty:1pc ... TDS Meter, Incubator, shaker, Hotplate, Mixer, PCR, Oven, etc. Portable Whiteness Tester Application:This instrument based on the principle of ... as:powder, board, paper, paste, sheet, clay, etc.Characteristics:1)Compact in size, novel in design & LCD display with suitcase package ...