The model 1000 uses the DeSa double grating monochromator. This model provides you with everything: broadest spectral range, most light throughput, easiest modularity, and rapid-scanning potential1. For Olis clients who want the most from their spectrophotometer, this is the model of choice. As one evaluator concluded, "If we want a unique instrument for doing (fast) kinetics with spectral resolution for CD, fluorescence and/or absorption spectroscopy (either now or after an upgrade in the near future), we certainly should purchase an Olis RSM, because its conventional CD performance is as good as that of the [competitor's].