ITS NEW LCD DISPLAY FOR CARRIER APX CONTROLLER, 960-080030-1-R 12-00663-64 YOU MAY USE IT WHEN YOUR LCD PANEL NOT SHOW THE CHARACTERS CORRECTLY.ITS ONLY LCD DISPLAY NOT THE CONTROLLER.YOU NEEDS TO HAVE ELECTRONIC TECHNICAL SKILL TO CHANGE LCD PANEL.A12-00663-05 920-070010-07-R 3C.FPC.0103..