Specifications include, but are not limited to: Wavelength Range 175 nm – 3300 nm Tungsten Halogen Lamp and Deuterium Lamp Pre-aligned tungsten halogen lamp and deuterium lamp (lifetime counter) to include automatic source change and source collection mirror Reflecting Optical System All reflecting optical system (SiO2 coated) with holographic grating monochromator to include: 1440 lines/mm UV/Vis blazed at 240 nm and 360 lines/mm NIR blazed at 1100 nm Littrow mounting Chopper Segment Signal Correction (CSSC) Dark/Sample/Dark/Reference Sample Thickness and Detector Sample thickness compensated detector optics, gridless photomultiplier R6872 Single stage Peltier cooled PbS detector (2500-3300nm) cover the NIR wavelength range