The Viper DS4+ car security system from Directed Electronics is designed to seamlessly integrate with your vehicle, providing robust security features such as high current relays for theft resistance and a temperature sensor to monitor your vehicle's environment. With the convenience of a smartphone remote control module, the Viper DS4+ allows you to start your engine remotely, ensuring your car is ready to go when you are, with the temperature just right. The integration of Bluetooth technology enhances the user experience, offering easy and intuitive control over the system's features directly from your smartphone. Whether you're concerned about the security of your vehicle or looking for the convenience of modern technology, the Viper DS4+ delivers.