Genie Control Board for Models 1128H, 1128B, 1135, 1155, 2033, 2128H, 2128HB, 3053, 3120H, 3120H-B, 3120HL, 3120HL-B 3155, 3155L, 3155D, 3155LD, 7155, 7155L, 7155D, 7155LD (with or without Battery Back up installed); Should only be used as a replacement for models listed above that originally had the Blue color circuit boards; Requires re-programming with the new board