This unit from Liftmaster is 100% Compatible to the Genie GPWK ACSD1G wireless digital keyless keypad, and works all Genie Intellicode series II or Overhead Doors code dodger type garage door or gate openers. Programming and installation is a snap, don't be locked out of your garage ever again.
-Flip up cover keeps keys proteced when not in use
-Controls one door opener
-4 digit entry code
-Backlit Keypad for night time use
-Includes programming manual and mounting screws
–Ppowered by one 9V battery (included)
-1 year manufacturers warrenty
-Dimensions: 6" by 2.5" by 1"