Yes, the POLARstar OPTIMA is the only microplate reader in this price range that offers Simultaneous Dual Emission (SDE) detection. Other microplate readers such as the POLARstar Omega, PHERAstar Plus and PHERAstar FS also have SDE detection and it can also be added to other microplate readers as an upgrade.
Simultaneous Dual Emission detection means that you can capture two emission wavelengths in one read of the plate. This feature greatly improves performance and read times in all dual emission assays, such as fluorescent polarization, fluorescence resonance energy transfer (FRET) and bioluminescence resonance energy transfer (BRET). SDE gives increased throughput, improved sensitivity and lower %CVs.
For more information on the POLARstar OPTIMA see: http://www.labcompare.com/308-Multimode-Microplate-Reader/2170-POLARstar-OPTIMA-High-Performance-Multidetection-Microplate-Reader/?ncatid=308