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This is an Ocean Optics USB4000 spectrometer unit. We acquired it in working condition and can confirm that it is functional.
We have newly calibrated the unit using known wavelength lasers at 395, 473, 532, 555, 593.5, and 628nm.
Currently we have no use for this unit as we have another spectrometer, so we are selling it off.
Please contact us if you have any questions!
