Security+ 2.0 narrow band multi-frequency 310/315/390 MHz receiver virtually eliminates radio interference. Program up to 1000 remote controls either individually or block learn with Passport Lite. Large keypad and LCD screen for quick and easy programming. Duplicate memory module included for programming additional receivers or data backup. Compatible with all Security+ 2.0 Remote Controls. Designed for outdoor environments. Includes 9 inch antenna.