... Spectrophotometer,Flame Photomete A & E Lab. Main Products: Atomic Absorption Spectrometer (AAS), Fluorescence Spectrophotometer, Bio-Spectrophotometer, UV Vis Spectrophotometer, Visible Spectrophotometer, Flame ... % or 0.2nm ±0.02nmBaseline Stability0.005A/30min Atomic Absorption Spectrometer