Liftmaster 376LM Garage Door Opener Keypad - Replaced with the 877MAX 376LM IS DISCONTINUED AND REPLACED BY 877MAX Compatible with all LiftMaster Garage Door Openers manufactured since January 1993. Completely wireless designpowered by one 9-volt battery (included). Equipped with Security+ 2.0 rolling code technology that virtually eliminates radio wave interference. Assign temporary passwords to let visitors or delivery and service personnel enter the garage without giving them your personal code.