Provides upgrade to Liftmaster Chamberlain or Sears Garage door openers manufactured since 1998 to new MyQ technology.
(works on units with Orange/Red or Purple learn buttons and model 8500) Not compatible with newest secuity 2.0 garage door openers
Can also used to upgrade old receiver and remotes to new security 2.0 remotes
Use with 891Lm, 892Lt, 890max, 893Max or similar remotes
Features motion activated light controller, lock feature and timer to close.
Allows you to add indoor monitor or control from smartphone or computer with 828Lm internet gateway.
NOTE: If more than 1 888LM is used they must be installed 24" apart.
If using as a replacement for 398LM this unit does not have clock
888Lm Manual click here
Installing the 888Lm and 828LM Gateway