McPherson Inc.’s 248/130 grazing incidence wavelength dispersive optical spectrometer enables rapid analysis of spectral light in the ~1- to 300-nm wavelength region (4 to ~1200 eV). It is useful for spectroscopy in the vacuum-UV and also the extreme- and soft-x-ray wavelength regions. Using direct-detection CCDs, gated image intensifiers or fast channel electron multipliers for detection, it provides a wide working range and flexibility in spectral acquisition. It is completely assembled, vacuum leak-checked and calibrated with respect to wavelength. It can include adapters, differential pumping and grazing incidence collection optics to facilitate connection to the experiment. It ships with a wavelength calibration certification that facilitates rapid identification of closely spaced high harmonics. Configured in reverse, the instrument operates as a tunable light source. Vacuum-UV spectroscopy accessories including various detector systems and wavelength calibration sources are available from <1 nm to the visible.