New Virtual TachTM eliminates the need for a tach wire in most installations New D2D serial data port for Xpresskits New Bitwriter programmable for easy configuration 2-Way LCD 5-button remote is backlit, has tone and vibe modes, Zone ID Command confirmations and event notifications via the LCD remote control Temp Check and clock time via the LCD remote control One-Way functions withe the 4-button companion remote (included) All the security features you expect - Zone-2 Impact sensor, Fault-proof starter interrupt, Nuisance Prevention, Warn-Away, Revenger siren, and more!