TFB313 is a small and professional tracker with internal high gain GNSS and GSM antennas, backup battery, and a builtin G sensor, which is able to collect device coordinates and other useful data and transfer them via GSM network to server. Device is also compatible and perfectly working with all Analog Weight Sensorsfor heavy truck or similar usage. In parallel, it can be connected to digital input and to control via Immobilizer as Output.