A LSR2 is a sorter manufactured by Becton Dickinson. It features digital electronics, a solid state 488 nm blue laser and optionally can also have any combination of solid state UV (355 nm) and violet (405 nm) lasers and the a HeNe (633 nm) ion laser. The LSR2 has the filters and PMTs to work with 13 fluorescent parameters. The LSR II is one of the most common sorters in use.