... : Repeatability 0.3%T Photometric: Range -0.3-3A,0-200%T Stray Light: ≤0.3%T Stability: ± 0.002A/ ... 220mm Weight: 15kg SE5100B Single Beam UV VIS Spectrophotometer, Automatical WL, Auto setting wavelength Spectrometers, spectrophotometer, spectrometersFeatures 1,Large LCD ... be turned on/off individually to extend lifetime.6, Automatical WL. calibration and dark current getting. 7,Optional software UV- ...