Do you know if the ship is more difficult to monitor if it is located in the navigation channel ports rather than on the high seas? It has to be monitored, especially the problem of information time and fuel conditions. Time information is used as a mooring plan and avoid demurage. While the fuel condition information is used to monitor the fuel and the basis for the calculation of the efficiency of the ship as well as the planning of the bunker. By using GSM technology that is cheap and affordable, these devices do not require a huge investment and very suitable for the condition of the shipping company in Indonesia which is dominated by the use of the old ships.