【Wide Compatibility】Compatible with LiftMaster/Chamberlain/Sears Craftsman Garage Door Opener with a Purple, Red, Orange, Yellow, Green, Learn Button Since 1993.【NOT Support Security+ 3.0 White Learn Button or Dip Switch Opener!】 【Replacement List】Replacement for 371LM 372LM 373LM, 971LM 972LM 973LM, 81LM 83LM, 891LM 893LM, 893Max 890Max 895Max. 【Easy Programming】Finish Simple Configuration In Less Than 2 Minutes. Enable The Learn Mode On Your Door Opener, Then Short Press The Remote Key. No Expert Or Electrical Help Required. 【Reliable Performance】Premium Third-Generation Intelligent Chip Ensures Steady And Dependable Working Status. Every Remote Is Tested With 100,000+ Cycles For Extended Service Life. 【Rolling Code Security】Dynamic Rolling Code Automatically Updates Every Time You Operate. It Fully Prevents Code Copying And Restricts Unwanted External Access. 【What You Get】All-Inclusive Bundle: 2 Remotes, 2 Pre-Installed CR2032 Batteries, 2 Visor Clips And 1 Instruction Booklet. 【3-Year Warranty】Backed By Avisontek’s 3-Year Warranty & Dedicated Support. All Messages Will Be Answered Within 24 Hours. Compatible with LiftMaster/Chamberlain/Sears Craftsman Garage Door Opener with a Purple, Red, Orange, Yellow, Green, Learn Button Since 1993.【NOT Support Security+ 3.0 White Learn Button or Dip Switch Opener!】