The DEI Directed Electronics DSM550 4G LTE SmartStart GPS Module Pro is a sophisticated device encompassing remote start, remote locking and unlocking, tracking device, and alert system with SmartFence, speed and security alerts designed for vehicle monitoring and control from your smartphone. With its advanced technology and connectivity, users can track and manage their vehicles with precision and ease. This GPS module is a reliable and efficient tool for fleet management, personal vehicle monitoring, and a range of other tracking applications. ***This is an ADD ON module for an existing remote start system. It requires remote start already functioning on the vehicle that is compatible with this SmartStart module***