The Digital Keypad is designed to control access to all Mighty Mule automatic gate openers. It can be programmed to use up to 25 different personal identification number (PIN) codes, and each code can be set up as a temporary or permanent security access code. Each code is face programmable with additional security features built in. This Digital Keypad can be easily installed wirelessly within 50 feet of your gate opener control box. Requires 3-AA batteries (not included).