Whiteness Tester 1)can test powder,pasty,boards,paper/sheet,clump etc; ... , paper, paste, sheet, clay, etc.² Chemical & Building materials industry: White Cement (powder), Paint (pasty), Coating (pasty), Plastic (boards), Steel Plate (boards ... .2Power Supply220V+/-10%OutputRS232 Interface--- --- ---Size & Weight405X325X330mm & 6.5kg Whiteness Tester