The Resonance Ltd vacuum monochromator and spectrometer packs great performance in a small package. The compact 4 kg system can be coupled directly to a vacuum chamber through a 2.75" Conflat® style flange to observe processes in a vacuum system. It's single grating design provides high VUV efficiency while the 300 mm focal length offers an excellent balance between size and functionality.The system can be configured either as a manual scanning monochromator, a motorized scanning monochromator or as a CCD spectrometer using interchangeable accessories.