The TT8750+ offers new and expanded features that make previous models completely obsolete. The new TT8750+ offers more input and output ports than previous models. The system also offers the ability to store up to 250 Geofences, which is an incredible improvement compared to previous models that only stored 5 Geofences. The TT8750+ also supports polygonal geofences and routes, none of the previous models had these features.