Transmission Grating Spectrophotometer with Various Line Options Available

Spectrophotometer Transmission Grating with Multiple Line Counts Available

Diffraction Grating 50 Lines Optical Spectrophotometer for Teaching Experiment

Diffraction Grating 80 Lines/mm for Spectrophotometer Teaching Experiments

Transmission Diffraction Grating Line Spectrophotometer80/300/600/1000/1200/1600

Diffraction Grating Spectrophotometer for Teaching 50 100 300 600 Lines

Spectroscopy Diffraction Grating Spectrophotometer with Various Line Options

Diffraction Grating Spectrophotometer 50 Lines for Teaching Experiment