Product Description
This KERRO KWM-1 whiteness meter is based on the principle of photoelectric effect & D65 light source (R457) and with 45/0 as a illumination condition. Ideally used on flat surfaces, the whiteness meter features an easy-to-read liquid crystal display (LCD) screen. The device determines the brightness level by measuring the intensity of the light reflection diffused on a scale of 100. The level of brightness of an absolutely black surface is defined by the meter as 1. Included with the meter are black, white and brilliance standards for DIY calibration as needed to ensure accurate, repeatable measurements are consistently obtained.