... Products: Atomic Absorption Spectrometer (AAS), Fluorescence Spectrophotometer, Bio-Spectrophotometer, UV Vis Spectrophotometer, Visible Spectrophotometer, Flame Photometer, Whiteness Meter, Turbidity Meter, ... .4nm,1.0nm,2.0nm (5steps,Automatic Changeover)Wavelength Accuracy ±0.15nmWavelength Repeatability <0.05nmResolution <30% ... Atomic Absorption Spectrometer / atomic absorption spectrophotometer