Easily measure ultraviolet spectra of materials, plasmas and processes! Fast and efficient, the Model 234/302 measures EUV and VUV transmission, reflection and emission. The f/4.5 spectrometer has adjustable slits for better throughput and resolution. Resolve closely spaced spectral lines. View 100 to 190 nm simultaneously, near real time, with sensitive, cooled CCDs. Tune the grating anywhere from 30 to 550 nm. Certified spectral calibration, and unit is available with standard sources.