Wavelength Range: 190-1100nm Spectral Bandwidth: 2nm(5nm,1nm optional) Wavelength Accuracy: í+0.5nm Wavelength Reproducibility: 0.2nm Photometric Accuracy: í+0.5%T(0-100%T), í+0.002A(0-0.5A), í+0.004A(0.5A-1A) Photometric Reproducibility: 0.2%T Working Mode: T, A(-0.33A), C, E Stray Light: í_0.1%T(NaI,220nm;NaNO2, 340nm) Baseline Flatness: í+0.002A Stability: í_0.002A/h( At 500nm, After warming up) Noise: í+0.001A(at 500nm, After warming up) Detector: Silicon photo-diode Display: 6 inches high light blue LCD Power: AC:220V/50Hz,110V/60Hz,140W Dimensions: 530í-410í-210mm Weight: 18kg.