The colorimeter PCE-XXM 20 is used to quickly measure the color of surfaces. The colorimeter has a highly sensitive RGB photodiode as a color sensor. The measurement of the color with the colorimeter PCE-XXM 20 takes place in the LAB color space. The measured value is displayed as LAB, XYZ, RGB or even Pantone value. Also, the colorimeter can measure the color difference ?E between two samples and display it on the color display.