Acton Research SpectraPro 300i Triple Grating Monochromator / Spectrograph

Acton SpectraPro 275 Monochromator Spectrograph 3-Grating Untested

PTI Monochromator (5103-MONO) & XenoFlash Lamp Housing (1910-XLH2)

Monochromator Assembly For Spectronic 20D+ Digital Spectrophotometer

PTI 5105-MONO Motorized Monochromator | 600 L/mm 1.25um Blaze

PTI Monochromator Dual Grating By Photon Technology Spectra Physics Tested

Precision Research Spectrophotometer Monochromator / Diffraction grating