LiftMaster by Chamberlain 315MHz Wireless Keypad 377LM
Access your garage and home without the use of a key or a remote control. The LiftMaster? 315Mhz Security+? Wireless Keyless Entry can open your garage door using a code that you program directly into the unit. There is also a temporary password option that enables family, friends, or service people to enter the garage/your home without giving them your personal code. You must have a purple learn button on the motor head under the light cover for the 377lm to work with your unit.