Handheld Spectrophotometer Paint Spectrometer Color Difference Tester with Caliber Φ11mm Accuracy 0.01 Repeatability dE*ab≤0.02 Integrating Sphere Diameter 40mm ASTM ISO Standard USB Interface

Three Apertures Color Spectrometer Spectrocolorimeter D/8 SCI/SCE Color Difference Tester with MAV Φ8mm SAV Φ4mm LAV 1x3mm Built-in Camera Repeatability ΔE*ab 0.03 Reflectance Range 0-200%

Make a sketch of a spectrometer and label the main parts.... | Filo