Fuel Level Sensors: Catching Theft and Refuelling Errors Early
How a capacitive fuel level sensor in the diesel tank helps bus operators track consumption, verify refuelling and get alerts on abnormal fuel drops.
Fuel is one of the largest running costs for any bus fleet. Yet many operators still rely on receipts and odometer readings to understand where it goes. A fuel level sensor gives a continuous, objective measurement straight from the tank.
How the sensor is installed
A capacitive fuel level sensor is a probe mounted vertically through the top of the diesel tank. It measures the fuel level along its length and sends readings to the vehicle’s telematics unit, which also knows the bus’s location and ignition status. It is a sensor in the tank, not a camera pointed at it.
What you can see
- Real-time fuel level for every bus.
- Consumption per trip, per route and per driver.
- Refuelling events, with the volume added, time and location.
- Abnormal drops, such as a sudden fall while the bus is parked.
Turning alerts into action
Because every reading is linked to GPS position, an abnormal fuel drop alert tells you not only that something happened but where. Combined with refuelling records, it becomes much easier to check that the fuel paid for is the fuel that reached the tank.
Fitting it to your vehicles
Probe length, tank fitting and telematics input are matched to each vehicle at installation, and the sensor is calibrated for the tank shape.
AirFi supplies fuel monitoring as part of its fleet intelligence range. Contact us to discuss fuel monitoring for your buses.
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