Street Smart's Code Encryptors send one of four billion possible codes, randomly changing every time you press the button. No imporevement in technology for a "code grabber" will ever be able to bypass this stat-of-theart-security! Wire through the data bus - ARM, DISARM and PANIC. No zone required. Easy installation - self-identifies to virtually any panel. Garage door access using secure encrypted codes. LED status light. Add up to 7 remote controls (sold separately). NOTE: CE2Y-2 is compatible with ADEMCO 4100, 4120, 4140; VISTA (SE & PLUS) Panels 5, 10, 15, 20, 48, 50; First Alert Professional, DSC 1550, 2525, 2550, 3000, 1550 (632), 5010 (832), 5020 (864), GE Caddx 8600E, 8980E; Napco 100E, 1008E, 1016E; Moose Z900, Z1100, Z1100E, A910.