Intelligent Security Sensors - The CS7900-AS is capable of adding door, hood, trunk, and impact sensors all around your vehicle to detect intrusion into your vehicle. In the event of intrusion, the 2-way LCD remote included with this system will alert you what's happening to your vehicle. 2-Way is the Only Way! Lock and start your vehicle with confidence using Compustar 2-way remotes, which provide visual and audible confirmation when your commands are sent successfully. 3000-ft max range remote start + alarm bundle with 2-way interactive LCD remote. Includes CM600 control module, shock sensor, siren, and LED. Some vehicles may require extra parts which are sold separately and not included. Wiring diagrams and installation instructions NOT included. Professional installation required.