This document describes a system for monitoring fuel tankers in real time. It monitors fuel levels, loading and unloading times, tanker location and movement. Sensors monitor individual cargo tanks and send data to a main module via EIA-485 interface. The module sends data via GSM/GPRS to monitoring software, which tracks the tanker and generates reports. It can monitor up to 11 cargo tanks and 3 truck tanks. Driver ID is tracked for security. Various tanker types can be monitored, including their components like sensors, modules and cables. The monitoring provides maps, graphs and reports on fuel levels, tanker trips and fuel usage.