Stop losing 100–300 litres per truck every month.
Night siphoning at parking places, a few "extra" canisters at the pump, fuel cards used for other cars. A DUT-E sensor in the tank records every litre in and out and sends it to the telematics you already have.
How fuel disappears from trucks
A full 600–800 L tank parked overnight is an easy target: a hose and ten minutes. At the pump, the driver fills the tank plus a canister on the company card. Neither shows up in CAN data, because the 7–10% error swallows it, and the monthly report just says "consumption was a bit high".
What you get
DUT-E measures the actual fuel volume to ±1%. A level drop while the engine is off becomes an alert with time, GPS location and litres. Each refill is compared with the fuel-card receipt, so "paid for 450 L, tank got 412 L" is visible the same day.
What does unaccounted fuel cost your fleet?
Enter your own numbers. Even a 2% loss on a 20-truck fleet adds up to tens of thousands of euros a year, walking away in canisters.
Saving just 100 L per truck per month is about €200 per truck. The sensor usually pays for itself within a few months.
Get a quote for my fleet →Every refill and every drain, with time, place and litres.
Fuel level streams to your platform continuously. Refills and drains are detected and flagged automatically.
- Fuel level curve: normal consumption on the road, without CAN noise.
- Refill vs receipt: paid for 450 L but only 412 L reached the tank? You see the 38 L gap.
- Drain alert: the level drops while the engine is off, and you get an instant alert with GPS location and volume.
Plug into your tracker, or go standalone.
Most fleets already have GPS trackers, so the sensor simply plugs in. If you have none, the all-in-one DUT-E GSM does the job by itself.
| Accuracy | ±1% of tank volume |
| Connects via | RS-485 / CAN / analog to your tracker |
| Data appears in | Your current platform: same login, new fuel reports |
| Best when | You already have telematics |
| Accuracy | ±1% of tank volume |
| Connects via | Built-in GSM, sends data on its own |
| Data appears in | Any tracking server you choose, or one we set up |
| Best when | No telematics yet, or a pilot on a few trucks |
Tell us your telematics provider. We'll do the rest.
We integrate with any system. Our sensors connect to the tracker you already have, and the data appears in the platform you already use. No tracker at all? DUT-E GSM sends data on its own.
Fuel theft stopped, not just reported.
Integration partner Starcom Systems halved fuel-drain volumes and cut cargo insurance costs by 60%.
A road-building contractor stopped fuel theft across 25 machines and recovered the whole investment in less than three weeks.
Fuel tankers and site storage tanks brought under accurate control with DUT-E GSM sensors.
Questions truck fleet owners ask
We already have GPS tracking. Why add a sensor?
Most trackers read the factory fuel gauge over CAN. That gauge is built to show the driver roughly how much is left, not to measure, and its error is 7–10%. A 100–200 L drain fits inside that error. A calibrated DUT-E sensor is accurate to ±1%, so every drain and every short refill becomes visible.
Can it catch fuel-card fraud?
Yes. Every refill is measured in the tank and compared with the card transaction. If the card says 450 L and only 412 L went into the tank, the difference is flagged on that refill, not at the end of the month.
Which telematics systems do you work with?
Practically any: Wialon, Webfleet, Geotab, Navixy, Teltonika-based platforms and most local providers in Czechia, Slovakia, Austria and Slovenia. Tell us which one you use and we take care of the configuration.
We have no telematics at all. What then?
Then DUT-E GSM: a fuel level sensor with built-in GPS and GSM in one device. It sends data on its own, with no separate tracker needed.
How quickly do we learn about a drain?
As soon as the next data packet reaches the platform, typically within minutes. The alert shows the vehicle, location, time and the litres drained.
Tell us your telematics provider
We'll come back within one business day with a setup and a price for your fleet.