TS8450 is a 45/0 optical portable desktop spectrophotometer, with 256 pixels dual array CMOS image sensor, imported white board, and gives consideration to the speed of measurement and the convenience of operation. It features with repeatability Δ E * ab easily control within 0.02, and inner instrument errors Δ E * ab control within 0.15. This accuracy measurement makes it good to use in the lab color accurate analysis and transfer. The TS8450 portable desktop spectrophotometer is also good to measure the brightness factor and color coordinates of traffic signs, markings and reflective films.Including GB 2893 and GB/T 18833 standard colors, it can customize the rectangular tolerance of polygons manually.