The Directed DS4SU is a security upgrade kit designed for Directed DS4 and DS4+ remote start systems. It adds full alarm/security functionality with a digital shock/tilt/temperature sensor and a 6-tone mini siren, turning a standard remote start system into a complete security and convenience package Main Features Adds security/alarm functionality to DS4 and DS4+ systems Includes digital shock/tilt/temperature sensor Includes compact 6-tone mini siren Plug-and-play integration with Directed DS4 platforms Bluetooth-enabled ecosystem compatibility Helps protect against: Vehicle theft Wheel theft Towing attempts Break-ins Works with Viper, Clifford, Python, Avital, and other Directed brands What’s Included Digital shock/tilt/temp sensor 6-tone mini siren DS4 integration hardware Plug-and-play D2D connectivity