Look at 888LM if trying to upgrade the receiver unitClick here to view the 888LM
Liftmaster 635LM great to upgrade units to the 390 mhz system CAN USE WITH ANY OF THE NEW OPENERS SO THAT YOUR OLDER 971lm SERIES REMOTES WILL WORK ON THE NEW SYSTEM. Saves you from buying all new remotes and wireless keypads
Programming Instructions (click here)
MODEL 635LM Universal Plug-In Receiver with Built-In Transformer - 390MHz Compatible with all LiftMaster Security+ 390mhz remote controls Plugs into standard polarized 120V, 60Hz AC outlet Includes 2-conductor bell wire Hard wires directly to any garage door opener strip Built-in door control button Momentary contact closure 5-amp relay type contact Power indicator light Smart Garage Door Opener receiver technology allows for easy programming with just a push of a button Accepts up to 8 Security+ remote control codes or 1 DIP switch and 12 billion code remote control codes Accepts 1 keyless entry code
Click here for 635lm programming instructions.
Works as described. Definitely would purchase again. Easy to attach and to program the transmitters that open the garage door. Only negative: it took too long for company to process the shipping of the item.
Expected shipping and delivery to be a bit quicker but all and all very satisfied!
This receiver was really a plug and use tool. My old Craftsman transmitters work just like a charm with it. Just had to make sure that I ordered the right frequency.
Item works fine. Replaces an identical unit which failed after many years of service.
Ordering was easy and the part arrived in a few days. Recommend this company to others and would use again in the future.
great unit...got it working in less than 5 minutes