Use this gloss meter to evaluate the gloss of any coated surface, check paints or inks, inspect print materials, and more! Using an infrared source that emits a beam of light at an angle to the surface, a sensor measures the reflected light.Features a 3-digit LCD and is switch selectable for a standard 60° measurement angle or a 20° angle for measuring high-gloss surfaces. Sensor is separate from meter for measuring hard-to-reach surfaces.