Compare sensor readings between vehicles
Plot one sensor, such as fuel level or temperature, for several vehicles in one chart over a period you choose.
Updated October 4, 2026
Who can do this: The FMS platform feature and the vehicle permission. Internal users only.
With Compare vehicles in the Fleet FMS view you can put the readings of one sensor for several vehicles in a single line chart. This helps you spot a vehicle that uses more fuel, a trailer that runs warmer than the others, or a battery that drains faster.
Compare vehicles
- Open the dashboard and click the Fleet FMS tab.
- Click the Compare vehicles sub-tab.
- Add the vehicles you want to compare in Add a vehicle…. You can pick several of your own vehicles.
- Choose the sensor in Select sensor. Only sensor types that the selected vehicles have are listed.
- Choose the period in the calendar. By default it runs from yesterday 00:00 to today 23:59.
- Choose the resolution, from Per minute to Per week. The default is Per hour.
- Choose how readings are combined per step: Average, Minimum, Maximum or Number of readings.
- Click Compare.
The Compare button stays disabled until at least one selected vehicle has the chosen sensor and the period is set.
Read the chart
- Each vehicle gets its own line and an entry in the legend.
- The unit of the sensor is shown on the vertical axis.
- Vehicles that do not have the chosen sensor are left out of the chart.
- If there is nothing to show, you see No readings in this period.
To change the vehicles, sensor or period, click Reset and fill in the form again.
Use a coarser resolution, such as Per 6 hours or Per day, for long periods. The chart stays readable and loads faster.