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https://mctroniktek.com/smart-home/390mhz-garage-door-remote-opener-comp-for-sears-craftsman-chamberlain-liftmaster
Specification: Material: Plastic Color: Black Frequency: 390MHz Battery: 3 volt CR2032 Codes: Features rolling code technology Compatible Brand: Chamberlain, Craftsman, LiftMaster, Sears Compatible Model: 971LM 972LM 973LM 139.53681B Dimension(LxWxH): 80x47x17mm Fitment: LiftMaster / CHAMBERLAIN and Sears Craftsman (Openers with a RED Smart Button only) RAYNOR (Openers with a RED Smart Button only) AccessMaster (Openers with a RED Smart Button only) ALL LiftMaster, CHAMBERLAIN, Sears Craftsman Machines Manufactured between 1997 - 2004 or - Any LiftMaster, Chamberlain or Sears Craftsman Machines that have one of the following PART NUMBERs on the end panel (you may have to pull off a light cover to find this part number) 41A5021, 41A5021-A, 41A5021-B, 41A5021-C, 41A5021-D, 41A5021-E, 41A5021-F, 41A5021-G, 41A5021-H, 41A5021-I 41A5021-1, 41A5021-1A, 41A5021-1B, 41A5021-1C, 41A5021-1D, 41A5021-1E, 41A5021-1F, 41A5021-1G, 41A5021-1H, 41A5021-1I 41A5483, 41A5483B, 41A5483C, 41A5483-1, 41A5483-1B, 41A5483-1C 41A5483-4, 41A5483-4B, 41A5483-4C 41A5389-1, 41A5389-1C, 41A5389-1D, 41A5389-1E 41A5507, 41A5507B, 41A5507C, 41A5507-6 41A5021-1ATS CRAFTSMAN MODELS PART NUMBERS MAY VARY SLIGHTLY (LOOK FOR SMART BUTTON COLOR) Replaces or Works with the Following Remotes: LiftMaster - 971LM, 972LM, 973LM, 974LM, 976LM, 977LM, 96LM Chamberlain - 950CB, 953CB Sears Craftsman - Check Learn Button or Part Number. Sears has too many Model numbers to list here Package Included: 1 X Garage Door Open