(Item # 003111108) Perkin Elmer Lambda 900 UV VIS NIR Spectrometer Model Lambda 900. Double beam, double monochromator, ratio recording. with microcomputer electronics, controlled by personal computer, Wavelenght range: 175 nm to 3300 nm. uv/vis resolution less than 0.05 nm, Nir less than 0.20 nm, Power 90 VAC-250 VAC, 50/60Hv, 400 VA much like PE Lambda 950 NIR