Fuel level sensors
The real tank level, measured to the liter. Connected probes and gauges in every tank: exact fuel level at all times, verified refills, and fuel theft flagged within the minute.
- High-precision capacitive probe fitted inside the tank
- Probe and CAN bus data combined, so you know if it was driving or siphoning
- Calibrated vehicle by vehicle at installation
- Fuel level curve with time-stamped refills and abnormal drops
What is a fuel level sensor?
A fuel level sensor, also called an electronic fuel gauge, is a capacitive tube set vertically inside the tank and connected to the GPS tracker. As fuel rises or falls in the tube, its electrical capacitance changes, and the system converts that into liters using a calibration table specific to each tank. After step calibration, the reading is accurate to within ±1 to 2% of the volume, compared with 10 to 15% for the vehicle’s original gauge. With no moving parts, the sensor does not wear out. It continuously measures the actual level, the exact volume of each refuel and any abnormal drop, time-stamped and geolocated. It is the instrument that tells normal consumption apart from theft.
How is a fuel sensor installed?
The technician cuts the sensor to the exact depth of the tank and fits it at the top with a sealing kit designed for this use, without touching the engine’s fuel supply circuit. Then comes calibration: known volumes are poured in steps and the level-to-liters table is recorded. This step is what makes the reading accurate, especially on irregularly shaped tanks. Dual tanks get two sensors.
Sensor only, or sensor + CAN bus?
The sensor knows what the tank holds, but not why the level drops. The CAN bus knows what the engine burned, but cannot see the tank. Cross-checked, they tell you whether missing liters were consumed or stolen. This is the setup Tracky recommends for heavy trucks, described on the fuel sensor + CAN bus page. To compare sensor technologies and choose by vehicle type, see the complete guide to fuel sensors and gauges.
Questions about Fuel level sensors
Which vehicles should get a fuel level sensor?
Trucks, coaches, vans and construction equipment, and even generators or fixed storage tanks. On cars and small vans, a sensor is rarely worth it: reading the original gauge or the CAN bus gives a good enough consumption trend.
Does fitting a fuel sensor void the vehicle warranty?
No, as long as a professional installer does the work: the tank is drilled at the top with a sealing kit, without touching the engine’s fuel supply or the vehicle electronics. On a leased vehicle, just let the leasing company know if your contract requires it.
How quickly does a fuel sensor pay for itself?
Often within a few months on a truck. A vehicle burning 3,000 to 5,000 dirhams of diesel a month that loses even 5% to detours, idling and theft quickly pays back its sensor.
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