Product Description: The WSB-I digital whiteness meter is mainly suitable for measuring the whiteness of non colored surfaces or objects or powders that are close to white and flat. It can accurately obtain whiteness values consistent with visual sensitivity. The opacity of paper can be accurately measured. The WSB-1 digital whiteness meter has accurate measurement, exquisite design, password box set, and is easy to carry. Very suitable for laboratory, external sample quality inspection, field, and mobile work.