The DUT-E GSM is a unique device that integrates a GPS tracker and fuel level sensor into one unit. This innovative device enables the tracking of Technoton DUT-E GSM positions for trucks, road vehicles, off-road vehicles, and also allows for the measurement of their fuel levels. Moreover, it can be utilized to monitor fuel levels in stationary cisterns, tanks, and diesel generators. The remarkable aspect of this fuel sensor is its full compatibility with TrackoBit's fleet monitoring software.