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EISCO - PH100QA Premium Quantitative Spectroscope, +/- 5nm Accuracy sold2024 Tapes are made of durableEISCO PH100QA Premium Quantitative Spectroscope, + 5nm Accuracy EISCO quantitative spectroscope is used for measuring light, wavelengths, and colors from light sources, and holds the diffraction grating and scale securely for legible readings. The spectroscope measures wavelengths from 400. 0 to 700. 0nm for detailed examination, and has an accuracy of + 5. 0nm for precision measurement. The spectroscope is versatile for measuring spectra emitted from