UV Visible Spectrophotometer Optical Performance Optical System: Littow type, Single beam, Grating system 1200l/mm Spectral Slitwidth: 5nm Wavelength Range: 200-1000 nm Accuracy:+_2 nm Repeatability:1nm Stray Light:<=0.5%T220&340nm Lamp exchange:Auto Photometric Performance Photometric Mode: Transmittance Absorbance Concentration Photometric Range:0-125.0%T,-0.097-2.5A, 0-1999C Accuracy:+_0.5%T Repeatability:0.2%T Main Functions 100%T:Auto 0%T:Auto Auto self-test wavelength light source and filter Data Output: Analog RS-232C PC Controlled Required: Win-spec.2.33EN Software(Option) Specification Display:2 X 20 2-line, 20 character backlighted LCD Sample Compartment:100mm light beam for test Built in 4 position Cell Holder:10mm , Power Requirement:110/220VAC, 50-60Hz +_10% Built in 4 position Cell Holder:10mm Dimensions:475 X 420 X 180(mm) Net weight : 11kg Gross weight: 14kg