Avital(R) 5105L 5105L 1-Way Security & Remote-Start System with D2D • Two 4-button remotes;• Virtual Tach(TM) eliminates the need for tach wire in most installations;• D2D serial data port;• Bitwriter(R) programmable for easy configuration;• Superhet (HX) receiver;• XCR relays onboard;• Separate ESP & D2D ports;• Security features include Zone-2 impact sensor faultproof starter interrupt Nuisance Prevention(R) Warn-Away & Revenger(R) siren;• Includes Control Center (antenna) wiring harnesses & owner/installation guides; 18 MONTHS