The DUT-E GSM combines a GPS tracker and fuel level sensor into a single device. It makes it possible to track the GPS position of trucks and other road and off-road vehicles as well as measure their fuel level. Technoton DUT-E GSM Additionally, the sensor is used to monitor the fuel in stationary cisterns and tanks and diesel generators. The best part of this fuel sensor is that it is completely compatible with TrackoBit’s fleet monitoring software.