Superhet (HX+) Receiver for Superior Range, Virtual Tach(TM) Eliminates the Need for a Tach Wire in Most Installations, New D2D Serial Port Performance Matched for Xpresskit Interface Modules, Bitwriter Programmable for Simple Configuration Remote Start Only Capable, Outputs for Optional Horn and Starter Kill/Anti?Grind Relays, 4-Channel Outputs, Two 1-Way 4 Button Remotes, Fault Proof Starter Interrupt Nuisance Prevention Warn Away, Stinger Double Guard(TM) Shock Sensor Xtreme Capacity Relay Pack, Revenger(TM) 6 Tone Siren, SKU: DAS9224