Works with all Guardian garage door openers. WIRELESS KEYLESS ENTRY KEYPAD Designed for outdoor installation and completely weatherproof, this wireless and keyless entry keypad grants quick and secure access to multiple garage door operators without the use of a remote. FREQUENCY: 303MHz/390MHz dual frequency burst CODES: Up to 6 digit programming, 1 million different combinations are possible OPERATING RANGE (tested): 200 ft. (61 m) AGENCY APPROVALS: FCC BATTERY: 2 AAA (Included) Mounting screws and anchors are included