We carry several wireless exterior keypads ( 377LM, 387LM, 877LM, 877MAX) meant to simplify your life. No longer will you need to enter your house in order to operate the door from the wall control panel. A keypad works just like a remote control transmitter (remote control). This type of keypad is very useful if you have a shed or a detached garage where you cannot install an access door (width of 36″ / 91 cm). For LiftMaster, Chamberlain and Craftsman (Sears) electric garage door openers, we can supply you with the exterior keypad that corresponds to the model of motor you have. For peace of mind and to learn which keypad is compatible with which model of door opener, contact us. Access your garage and house without needing to use a key or remote control. Our universal wireless entry is designed to work with a wide range of garage door opener brands to enable convenient and safe access to your garage and your home. Open or close your garage door without using a remote control or key. This keyless entry opens the door using a private 4-digit code you directly program into the device. This exterior keypad enables you to open or close your garage door without using a remote control or key. Plus, it works with all LiftMaster garage door openers made since 1993. Programming is easy, just like your remote control transmitter (remote control).  Replacement Batteries If you have a LiftMaster, Chamberlain or Mastercraft keypad, you need a 9-volt, rectangular battery. We have these batteries in inventory at our store.