The Wireless Keypad provides trusted, convenient walk-in access without using a remote control or key. Set up in seconds with easy-to-follow wireless programming and compatible with nearly every garage door opener made by Chamberlain, LiftMaster and Craftsman, built from 1993 to present. (Any Chamberlain opener with Safety Sensors). Rigorous quality testing ensures that the hinged cover offers protection in all weather conditions. A personal four-digit access code allows for easy entries. The keypad also includes advanced features such as a one-touch close button for efficient exits and a temporary PIN that can be programmed to allow limited-time access for deliveries or guests. Security.0, the highest level of encryption, prevents hacking and provides peace of mind. Additional assurance with 1-year warranty. Includes 9V battery and instruction manual.