... , y10, z10;lightness L*;chrominance a*, b*;chromaticity C*ab;hue angle h*ab;dominant wavelength λd, excited purity Pe, color difference ... ΔE*ab, lightness difference ΔL*, chromaticity difference ΔC*ab, hue difference ΔH*ab, Hunter system L, a,b.2 ... the instrument easy to operate.5.Added the printer and used the imported Thermal Printer , no need to use ink and colored tape ...