The IntelliTrac X1 Plus, the latest generation of the IntelliTrac X series, utilizes GPS and GSM technologies to track and locate moving vehicles. The keys to the success of the IntelliTrac X1 Plus are feasibility, reliability, and cost-effectiveness, making it one of the best-selling vehicle trackers developed by S&T. The IntelliTrac X1 Plus can be remotely configured and its firmware can be remotely updated via CS Data and GPRS. This allows the IntelliTrac X1 Plus to upload and install the latest firmware version without users physically touching the tracker. Additionally, the IntelliTrac X1 Plus features circular geo-fences that enable customers to remotely track a vehicle in real-world geographic areas. While a virtual geo-fence area is set up for the IntelliTrac X1 Plus, when the vehicle carrying the IntelliTrac X1 Plus enters or exits that zone, the location information of the IntelliTrac X1 Plus will be generated and sent to the tracking center via GPRS.