AL2000DS Alarm features: ?FSK transmission technology ?Built-in lock/unlock/2*parking light relays on PCB ?Ignition kill relay ?Arm and lock ?Disarm and unlock ?Valet switch ?Internal RF board ?Anti-hijack ?Auto re-arming ?Arming reminder ?Outrange warning ?Mute alarm on/off ?Emergency disarming ?Door lock upon footbrake ?Door-opened warning ?Trunk release ?Valet mode ?Headlamp warning ?Learning code ?Shock / Door-open / Ignition /trunk trigger alarm ?3 External remote engine starter relays ?Reservation mode for manual car ?Remote engine start on/off ?Ignition time adjustment for remote engine start ?Optional 3 pin auxiliary sensor input Transmitter features: ?Icons display on remote control's LCD screen ?Buttons lock/unlock ?LCD Illumination DN is the same with DS,but without remoter engine starter