Here is no nanometer extent surrounded by to establish what wavelengths are bestow in the lightsource being viewed. Only a rainbow. Not extremely helpful. I will taste approximately of the additional spectrometers. - chris714 "chris714"
I bought this manufactured goods, It is a good one, I rotated one of the two ends 90 top angle to get better view.
- Mahmoud Mohamed Shendy
3B Scientific U21875 Plastic Budget Hand Held Spectroscope
Hand spectroscope. An uncomplicated yet still fully functional spectroscope for observing spectra and ethereal lines. This model is made of cardboard and fake with built-in grid. Events 28mm diameter by 145mm part.
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