The compatible replacement for this item is the Chamberlain LiftMaster 387LM Universal Keyless Entry System .

• Lift-Master Wireless Keyless Entry System
• Compatible with ALL billion code systems with the red or green LED light, including Chamberlain, Sears, Craftsman, Master-Mechanic, Wayne Dalton and Tru Value (not compatible with Security+ code rotating see model 976LM for Security+ systems).
• Compatible with Liftmaster remotes models 51LM, 52LM, 53LM, 54LM, 61LM, 62LM, 63LM, 64LM and 81LM, 82LM, 83LM, 84LM.
• Compatible with Chamberlain remotes models 50, 53, 54, 750CB, 753CB, 756CB, 850CB, 853CB.
• Compatible with Sears remotes models 139.53707,139.53758,139.53778,139.53779,139.53780,139.53800,139.53879,139.53515, 139.53606,139.658430,139.53637SRT.
• Compatible with True Guard remotes from 1984-1992 with 8 or 9 dip switches and 390 MHz frequency
• This unit is the same as the Chamberlain model 740CB and Sears models 139.53776 and 139.53876
• Easy mounting to your garage door jamb with just 2 screws
• Lets you open your garage door without remote control or keys
• Over 10,000 codes for maximum security

This item is not compatible with dip switch-type Sears/LiftMaster garage door openers. Use LiftMaster Keypad 387LM