See where your fuelactually goes.

One tracker per vehicle and the receipts your drivers already collect. FuelSense turns them into every trip, every idle minute, a fuel cost you can audit, and the gap between what was bought and what was burned.

Professional-grade GPS trackers, fitted in an hour. Nothing has to go in the fuel line or tank.

  1. 1

    Receipts lead

    The headline is money actually paid at the pump. The modelled burn is one toggle away.

  2. 2

    Every trip, a route

    Recent trips as miniature routes. Open one for the map, the stops, the driver and a replay.

  3. 3

    A score that explains itself

    Fleet health and preventable loss, each broken down into the alerts and minutes behind it.

  4. 4

    Ask, don’t dig

    FuelBrain answers questions over the same data, with the figures and a chart.

Hardware

Professional-grade GPS trackers

Teltonika, fitted under the dash

Hosting

AWS eu-north-1, encrypted at rest

Backed up every day

Access

Manager and read-only viewer roles

Managers edit, viewers only look

Method

Every figure shows its working

Fuel is an estimate, inputs on show

Between two fill-ups, a fleet runs blind.

You know what you paid at the pump. You do not know how far that fuel took the vehicle, how much of it burned standing still with the engine running, or which driver’s day it went into. Every argument becomes one person’s word against another’s.

FuelSense replaces that with a record. Watch the week between two receipts fill in.

One vehicle, Monday to Friday

What happened between two receipts

Receipts onlyWith FuelSense
Driving Engine on, not moving Fuel receipt
Mon13 Oct
No record
—
Tue14 Oct
No record
—
Wed15 Oct
No record
—
Thu16 Oct
No record
—
Fri17 Oct
No record
—

Mon Fill-up 07:40 · NNPC Gwarinpa · 40.0 L · ₦52,000

Fri Fill-up 18:10 · Total Garki · 38.0 L · ₦49,400

Driven
0.0 km
Engine on, not moving
0 min
Fuel burned, modelled
0.0 L
Spent on idling
₦0

₦1,300

Per litre, and moving

Each litre is valued at the price in force the day it burned, so last month never changes when today’s price does.

0.9 L/h

Burned going nowhere

A typical petrol engine idling: fuel spent on zero kilometres, invisible on a fuel card statement.

0

Sensors required in the fuel line or tank

One tracker wired to power and ignition, and the receipts you already collect. A tank sensor is an option, never a requirement.

Measured, not simulated

One real vehicle. One week.

Our own test vehicle in Abuja, the week to 31 October 2026. Every figure is what the dashboard showed, with the working one click away.

38
Idling stretches over a minuteEngine running, vehicle still. Each one listed with place and time.
₦5,117
Spent on idling4.1 hours of idling, 3.7 litres, priced at the day’s pump price.
0.03%
Distance error117 km of trips against the tracker’s own odometer: 116.97 km.

Watch a journey account for itself.

Every vehicle sits on a live map with its trail behind it. Trips open and close from the ignition, stops are detected and given real addresses, and the tank drains in step with the distance.

LAG-001-FSToyota RAV4 · Abuja

Every flag points at a second you can watch.

Harsh braking, harsh cornering and harsh acceleration come from the tracker’s own accelerometer, measured in g at the moment it happens, with the sensitivity set on the device. Declare a speed limit and sustained stretches above it are found from the measured speed. The track is coloured by measured speed, so a flagged moment is something you can see in context rather than a label you have to trust.

One drive, every detection the tracker supports, in the order they fired.

LAG-001-FS · Toyota RAV4 · Life Camp → Maitama
Measured speedHarsh brakingHarsh corneringOver the limit

Speed

18 km/h

Distance

0.0 km

Tank (modelled)

39.7 L

Fuel spent

₦0

Live stream connected · 38 ms0 msgs
  1. Listening for the next event…

Scripted demonstration, not a live vehicle. The detection method, thresholds and units are the ones the product actually uses — this particular drive is not real.

What is not here matters as much. Nothing on this page comes from an engine computer, because these trackers have no CAN or OBD link — so FuelSense does not claim engine load or RPM, and the fuel level is only sensed where the optional tank sensor is fitted. Every flag above comes from the tracker’s own readings, and the replay shows you the working.

Ask your fleet a question.

FuelBrain is an assistant that works over your own fleet data. Ask in plain English who idled the most, what fuel cost last month, or which alerts need you today, and get an answer with the figures behind it.

Illustrative conversation. Answers are drawn from each fleet’s own tracker and receipt data; every fleet gets 1,000 credits a month.

  • Answers from your own fleet

    FuelBrain reads the same trips, idling, alerts and receipts the dashboard shows. It does not guess from the internet; if the data is not there, it says so.

  • Shows the working

    Figures come with the period, the price and the vehicle they were drawn from, plus a chart or table when the question is a comparison.

  • Nothing is sent without you

    It can draft a message to a driver. The draft waits for a manager to approve, edit or discard it.

A tracker and satellites. Arithmetic you can audit.

The standard fit splices nothing into the fuel line and puts nothing in the tank. The work is done by a professional-grade GPS tracker fitted to the vehicle, and by the satellite fixes it already collects.

Every figure
shows its working.

Read the full method →

A field guide

How FuelSense
works

Five chapters · every figure shows its working

01The tracker

Fig. 1 — Wired to power and ignition, behind the dash.

The tracker is fitted

A professional-grade GPS tracker is wired into the vehicle’s power and ignition. From that moment it reports position, speed, ignition and movement over the mobile network: every few seconds while driving, hourly at rest.

Nothing is spliced into the fuel line and nothing is fitted in the tank.

  • Ignition opens and closes trips
  • Odometer validates distance
  • Speed separates driving from idling

02Litres

Fuel for the distance

km ÷ rated km/L

30.4 ÷ 9.8 = 3.10 L

Fuel for the idling

idle h × idle L/h

0.37 × 0.9 = 0.33 L

Worked example: one trip in a 2013 RAV4.

Distance and idling become litres

Odometer-validated distance is divided by the vehicle’s rated economy: the official city figure for its model and year, or the rate you set yourself.

Engine-on minutes standing still (speed under 2 km/h) are added at an idle burn rate, counted to the minute from the tracker’s ignition and speed.

The sum is a model, and it is labelled as one everywhere it appears.

03Naira

Litres become naira

Each litre is priced at the fuel price in force the day it burned, so last month’s cost never changes when today’s price does.

Receipts your drivers file are the money actually paid. They set the day’s price and are shown beside the estimate, never blended into it.

NNPC RETAIL · WUSE

VOLUME40.00 L

PRICE/L1,300.00

TOTAL ₦52,000.00

Sets the day’s price

3.43 L × 1,300 = ₦4,459

04Honesty

An estimate that admits it is one

These trackers have no fuel sensor and no link to the engine computer. Litres are modelled from what the tracker measures well: how far the vehicle went, and how long the engine ran while it stood still.

The only fuel figure treated as fact is a receipt.

Trip confidence

82 / 100

  • − 8 · a 6-minute reporting gap near Kubwa
  • − 6 · cold start without a GPS lock
  • − 4 · sparse fixes in the first kilometre

Every score carries its reasons.

05The working

Three lines, published

  1. Distance km ÷ rated km/L
  2. Idling idle h × idle L/h
  3. Cost litres × ₦/L that day

Nothing hides behind a “proprietary algorithm”. A number you cannot check is a number you cannot act on.

One device. Every record accounted for.

A professional-grade tracker behind the dash, wired to power and ignition. This is the path one record takes, from the vehicle to the screen.

GNSS12 VIGNTRACKERGPSIOODOLTEFuelSenseACK #1041TRIP · 07:1218.4 km

Record · 07:12:04

lat
9.07701
lng
7.40012
speed
38 km/h
ign
on
odometer
81802.4 km
satellites
9

Trips start themselves. Ignition on, trip open.

Every stop has a name. Not a coordinate.

Idling, in naira. Priced at the day's pump.

An alert you can't miss. With the reading attached.

Optional add-on

A fuel-level sensor, for litres measured rather than modelled.

Where every litre counts, we fit an Omnicomm LLS 5 capacitive probe in the tank, rated by its maker to 99.5% accuracy. It reads the fuel that is actually there, so a fill-up, a drain or a siphon shows as a measured change in level.

  • Wired to the same tracker; no second device to manage.
  • Receipts are checked against the litres that entered the tank.
  • Suits tanks with a flat top and a straight drop: trucks, buses, generators. Most car tanks are moulded and cannot take a probe.
Contact us for pricingQuoted per fleet, with installation.

What was burned, against what was bought.

Without a tank sensor, FuelSense never claims to have watched fuel leave the tank. A receipt is the one fuel figure that is fact. It is credited as money paid and set beside the burn modelled from the vehicle’s movement, so a gap is a specific number on a specific day to ask about.

File a receipt · LAG-001-FS

NNPC RETAIL

WUSE ZONE 4, ABUJA

PUMP 3 · PMS10/10/26 14:05

VOLUME40.00 L

PRICE/L1,300.00

TOTAL ₦52,000.00

THANK YOU

FuelSense · ReceiptsOctober
EvidenceMerchantLitresAmount

NNPC RETAIL

WUSE ZONE 4, ABUJA

PUMP 3 · PMS10/10/26 14:05

VOLUME40.00 L

PRICE/L1,300.00

TOTAL ₦52,000.00

THANK YOU

NNPC Wuse10 Oct · 14:05 · LAG-001-FS40.0 L₦52,000 Evidence attached
Total Garki3 Oct · KUJ-117AA38.0 L₦49,400
Mobil Kubwa27 Sep · LAG-001-FS30.0 L₦39,000
Virtual tank · since this fill40.0 L in
Bought 40.0 L Modelled burn 32.5 L≈ 7.5 L should remain
  1. 01

    Photo at the pump

    From the driver app. Managers can file one for a driver without a phone.

  2. 02

    Read, then confirmed

    OCR fills in merchant, litres and amount; the person filing checks them before saving.

  3. 03

    Credited and reported

    The litres join the vehicle’s virtual tank and the manager is notified with the slip.

  4. 04

    Sets the day’s price

    The price paid values every litre burned that day, so costs follow the real pump price.

When a vehicle goes dark, you get the whole story.

A tracker that is jammed, unplugged or out of signal stores what it saw and sends it when it can. FuelSense puts those readings back in order: what happened first, where the vehicle was, and which reading says so. A crew in trouble can raise the alarm without a word.

Panic button pressed, then went silentPATROL-07 · illustration
  1. 21:14:02Panic button pressedDIN2 · AVL 2
  2. 21:14:40Signal and satellite fix lost togetherAVL 21 + AVL 69
  3. 21:16:05Main power cut, 12.7 V to 0.4 VAVL 66
  4. 21:16:05Running on backup battery, 96%AVL 113
  5. 21:31:12Last report, 3.4 km from the pressGNSS fix
  • Hidden panic button

    A concealed switch raises a critical alert with the position. Nothing in the cab shows it was sent.

  • Cleared operators only

    Each operator touches a key tag to start. An unknown key, or driving without one, is raised at once.

  • Jamming

    Mobile signal and satellite fix lost together just after driving: the pattern a jammer leaves.

  • Power cut

    The tracker’s supply falls away while parked, and the backup battery takes over and is counted down.

  • Engine cut-off

    Stop a vehicle restarting from the dashboard. Command accounts can require a second officer to approve.

  • One timeline

    Every reading in order, each naming the tracker element it came from. Evidence, not a verdict.

Find out what your fleet actually costs.

Start with one vehicle. We supply and configure the tracking hardware, or work with trackers you already run.