Will the Vernier Emulator work with LabQuest 2?

No. The LabQuest Emulator is only compatible with the original LabQuest.

If you are using LabQuest 2, you can use LabQuest Viewer, order code LQ-VIEW, $49 to view and control LabQuest 2 from your Windows or Macintosh computer. When LabQuest 2 is connected to a computer wirelessly or via USB, LabQuest Viewer can be used in conjunction with a projector to share the LabQuest 2 screen with the entire class.

For additional information, see TIL 2662: What is the difference between the LabQuest Emulator and the LabQuest Viewer?