Fuel Sensor, Fuel Sensor Size- 2500mm Interface for digital data, exchange with external devices- RS- 485, Fuel, Sensor Size- 1500mm Interface for digital data exchange with, external devices- RS- 485, Fuel Sensor Size-, 1000mm Interface for digital data exchange with external devices,- RS- 485, GPS for Vehicle Tracking System_ Dual SIM, Bluetooth, Fuel Level Indicator, A D Inputs, SOS Alerts, GPS application Data, Charges for Each GPS for 5 years, SIM Charges for Each GPS for 5, years