SEOH Direct Vision Spectroscope
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Sturdy economical hand held Direct Vision Spectroscope. Excellent for basic student use. Spectra of different light sources clearly visible with these Spectroscopes.
Sturdy economical hand held Direct Vision Spectroscope. Excellent for basic student use. Spectra of different light sources clearly visible with these Spectroscopes.
2019-05-28 02:29:51