Spectraview is the software needed to access and change the hardware LUT. An Eye One Display 2 (i1d2) is the usual recommended colorimeter, and the one NEC provides is a rebranded/possible tweaked version of the i1d2. You can get it as part of the -SV package on the LCD, or separately as SVII-KIT or SVII-PRO-KIT from NEC.