Liftmaster Sears Chamberlain Remote Control Transmitter 877MAX
The Liftmaster 877MAX makes it easy for you to open or close your garage door without using a remote control or key. This LiftMaster Wireless Keyless Entry System 877MAX can open the door using a private 4-digit code you program directly into the unit. It's simple to program it with temporary access codes for visitors or delivery personnel. Plus, it works with all LiftMaster garage door openers manufactured since January 1993. It is also compatible with the new MyQ technology.
Will this keypad work with my liftmaster chamberlain garage door opener model 1255LM?
You will have to check the date of manufacture on your unit to be sure. It is compatible with 315 MHz or 390 MHz garage door openers manufactured after January 1, 1993
Can you program this to open two doors independently?
No, it is only programmable for one unit.
what type of battery is for liftmaster security plus keyless entry?
Will this item open a Sears garage door opener model 139.53684?
Can I get just the cover for the battery?
No, it isn't sold separately.
Will this item open a Sears model 13953964SRT
Yes, this should be compatible.