YL4520 is a benchtop grating spectrophotometer which is developed by 3nh independently with independent Itellctuall property. YL4560 has many features like 7 Inches TFT capacltive ...

YS4580 spectrophotometer uses 45/0 (45 degree ring illumination 0 degree reception) geometric optical structure in accordance with CIE No. 15 and adopts concave grating spectrometr...