Diffraction Grating Spectrophotometer Designed for Educational Settings

Diffraction Grating 50 Lines Optical Spectrophotometer for Teaching Experiment

Diffraction Grating 80 Lines/mm for Spectrophotometer Teaching Experiments

Transmission Grating Spectrophotometer for Educational Spectroscopy Use

Diffraction Grating Spectrophotometer for Teaching 50 100 300 600 Lines

Diffraction Grating Spectrophotometer for Spectroscopy Teaching Experiment

Transmission Diffraction Grating Spectrophotometer for Science Education Use

Diffraction Grating Spectrophotometer 2mm for Spectroscopy Experiments