The Chamberlain 940EV wireless garage door opener entry keypad from Garage Door Supply Company is interchangeable with the LiftMaster 878MAX. This Chamberlain keyless entry pad for garage door access will work with all LiftMaster, Chamberlain and Sears Craftsman garage door openers made after 1993. The 878MAX LiftMaster remote keypad and Chamberlain 940EV garage keyless entry keypad 940EV will work with all LiftMaster, Chamberlain and Craftsman openers with a green, red, purple or yellow learn button. Chamberlain, LiftMaster and Craftsman parts are often interchangeable because they are made by the same company. Product Highlights: