VT300-L is a 4G based GPS vehicle tracker. With built-in high-precision GPS positioning module reports the vehicle location and vehicle status to the vehicle tracking service platform through the 4G network for real-time monitoring, anti-theft and dispatch management. It can be applied to fleet management, public transport management, school bus management, taxi operation management, vehicle insurance company management, lease management and private car anti-theft, etc. VT300-L has a built-in 32Mb Flash memory. When the device enters blind area, it will automatically save historical positioning data. When the network recover, it will automatically resend historical positioning data to the service platform. VT300-L contains an RS232 port that can be connected to RFID or iButton for vehicle driver identification and vehicle control. It can also be connected the OBD decoder to read the car ECU data and connect other RS232 peripherals to achieve the corresponding function.