Real-Time Diesel Level Monitoring
Live fuel level in litres and percentage, updated every few seconds. Accessible from the web dashboard or mobile app. No manual readings, no estimation, no guessing.
Fuel Monitoring System
Fuel Monitoring System for Fleets, Generators, and Tower Sites
Know your diesel levels in real time. Get instant alerts when fuel drops unexpectedly. Track refills, consumption, and theft events across every site from one dashboard.
The Problem
Diesel Disappears Without a Trace. Until Now.
Diesel theft and untracked consumption are two of the most persistent margin problems for Indian operators. According to MotorIndia magazine, approximately 8% of all diesel filled in trucks is stolen during transit. Industry data from 2024 estimates losses of ₹15,000 to ₹25,000 per truck per month in theft-related fuel alone. A 20-truck fleet is losing ₹3 to 5 lakh every single month before a single invoice is disputed.
The problem is worse at stationary sites. Generator tanks at telecom towers, hospitals, construction sites, and commercial buildings have no automated oversight. A tank filled on Monday might show a different level by Thursday morning, with no log of what ran, what was consumed, and what was removed. Manual dipstick readings happen once a day at best. The gap between the last reading and the next one is an open window.
No real-time visibility
Diesel levels checked manually, once per day or less. Every hour between readings is unmonitored.
No evidence on theft
When fuel disappears, there is no timestamp, no quantity record, and no way to act on the loss or assign accountability.
No multi-site view
Operators managing multiple generators or vehicles have no single dashboard. Reporting is fragmented across paper logs, WhatsApp messages, and phone calls.
How It Works
How Navionyx Fuel Monitoring Works
From sensor to alert in seconds — a complete IoT pipeline for every litre in your tank.
01
Sensor Installation
A calibrated capacitive IoT fuel sensor is installed inside the tank. Measurement precision is approximately 1% across the working range — for a 1000-litre tank, that means a maximum error of around 10 litres, enough to reliably detect a 50-litre theft event. Navionyx uses the Escort TD-150 BLE sensor for DG and stationary tank deployments, rated IP69 and certified OExiallBT6X for hazardous fuel environments.
02
Data Transmission
The sensor connects to a Navionyx GPS telematics device via RS-485. Data is pushed to the Navionyx cloud every few seconds. The same device carries GPS coordinates so every fuel reading is location-tagged and timestamped at the server level.
03
Live Dashboard
Fuel levels appear in real time on the Navionyx web dashboard and mobile app. Tank 1, Tank 2, or a full multi-site view: operators see current litres, percentage, and a full-day time-series graph that shows consumption trends, idle periods, and refill events as distinct upward spikes.
04
Theft Alert Engine
An event rule runs continuously in the background. In live generator deployments, the threshold is set at 10 litres per 10-minute window. If the level drops faster than that threshold and the generator is not running, the system classifies the event as a probable fuel drain and pushes an immediate notification via app and SMS — with asset name, tank number, quantity dropped, and timestamp.
For a more detailed look at a real installation, read the Navionyx deployment article: How We Monitor 1000-Litre Diesel Generators in Real Time →
What We Deliver
Everything You Need to Track Every Litre
Six integrated capabilities — from sensor to dashboard to alert — so nothing leaves your tanks without a record.
Fuel Theft Alerts with Exact Quantity and Time
When an abnormal drain event is detected, the alert includes the precise volume dropped, the exact time, and the asset location — sufficient to act on immediately.
Refill and Drainage Reports
Every inflow and outflow is logged with a timestamp and volume. Finance teams can reconcile every litre on a diesel invoice against the sensor log without a manual audit.
DG Generator Fuel Consumption Analytics
Track consumption patterns over time. Identify generators running outside their expected range and plan refills before sites go critical.
Multi-Tank and Multi-Site Dashboard
Monitor two tanks on the same generator simultaneously, or aggregate every site in your portfolio onto one screen. One login, full visibility.
SMS and App Alerts for Abnormal Drops
Alerts reach the right person immediately, not at the next morning's review. Configurable thresholds match your site risk level.
Industries
Industries Where Fuel Monitoring Pays for Itself Fast
Every sector below has a diesel exposure problem. Navionyx solves it with the same hardware and platform, configured to the specific risk profile.
Telecom Tower Operators
India has over 100,000 telecom towers — the country's second-largest diesel consumer after Indian Railways.
Remote sites with no practical way to physically verify fuel daily. Navionyx provides centralised multi-site visibility with automated theft alerts that do not require field visits.
Hospitals and Healthcare Facilities
For hospitals, a generator is a life safety asset. Fuel management is not about cost alone — it is about ensuring critical systems have power when grid supply fails.
Navionyx monitoring prevents low-fuel surprises and provides documentary records for compliance and audit purposes.
Construction Contractors and Project Sites
Construction sites run generators across multiple remote locations simultaneously, each with its own exposure to theft.
A single Navionyx account gives the project manager visibility across every site in real time, with mobile alerts wherever they are.
Commercial Real Estate and Facility Management
Buildings managing shared generators as a common asset benefit from accountability at the tank level.
Monthly diesel reconciliation that previously required a full audit becomes a minutes-long export from the Navionyx dashboard.
Generator Rental Companies
Rental operators are doubly exposed: they own the asset and the fuel.
IoT monitoring lets rental companies track fuel levels at customer sites remotely, detect drains that should be billed, and verify consumption without field visits.
Live Deployment Data
Real Numbers from a Live Navionyx Deployment
This is what a clean monitoring run looks like. Two tanks. One generator site. Zero theft events.
935 L / 1021 L
Tank 1 Live Level — 92% capacity
966 L / 1021 L
Tank 2 Live Level — 95% capacity
0
Theft events that day — clean monitoring run
In a live Navionyx deployment on a generator site, the Analytics tab shows a full-day time-series graph for both tanks plotted on the same chart. Two flat parallel lines from midnight to mid-morning tell the site supervisor, without a single phone call, that the generator has not run and the fuel has not been touched. The absence of downward movement is itself a meaningful data point.
When a drain event does occur, the graph shows a sharp drop distinct from the gradual slope of genuine consumption, and the theft alert rule fires within seconds. The platform logs refill events separately — when a tanker arrives and the level rises sharply, that event is recorded as a fill with the volume and timestamp. The result is a complete ledger: every litre added, every litre consumed, every litre that left unexpectedly, all in one exportable log.
FAQ
Frequently Asked Questions
Navionyx uses calibrated capacitive IoT fuel sensors for generator and stationary tank deployments. For industrial DG applications, we use the Escort TD-150 BLE sensor, which carries an IP69 ingress protection rating and the OExiallBT6X explosion-protection certificate. It connects to the Navionyx GPS device via RS-485 and transmits data to the cloud every few seconds. Measurement accuracy is approximately 1% across the tank's working range.
Yes. Navionyx supports multi-tank monitoring on a single asset. Both tanks are visible simultaneously on the same dashboard screen, with individual level readings, percentage values, and time-series graphs for each. Alerts can be configured independently per tank.
Navionyx uses a configurable event rule that monitors the rate of fuel level change. A running generator consumes diesel gradually, producing a slow and steady decline on the fuel graph. A theft event produces a sharp drop — typically 50 to 200 litres over a matter of minutes. The standard threshold is a drop of more than 10 litres within any 10-minute window with the generator off. Normal consumption does not trigger this rule; only anomalous drains do.
Yes. Navionyx fuel monitoring supports both vehicle fleets (trucks, buses, tippers, and construction equipment) and stationary assets (DG generators, storage tanks, and tower sites). The sensor hardware and telematics integration are the same across both use cases, with the dashboard adapting to show location data for moving vehicles.
The alert is delivered as a push notification to the fleet manager or facility team's mobile app and as an SMS. The notification includes the asset name, tank identifier, volume of fuel dropped, exact timestamp, and current remaining level. The recipient can open the Navionyx app immediately to see the fuel graph with the drain event marked, the GPS location of the asset, and current fuel status.
Installation is completed in under 2 hours per tank in most cases. The sensor probe is inserted through the tank cap opening and the GPS telematics device is mounted on the generator housing. Our field technicians calibrate the sensor on-site by confirming readings against known fuel volumes. Our team coordinates installation timing with site operations to minimise disruption.
Yes. The multi-site dashboard aggregates every monitored asset across your portfolio into a single account view. You can filter by site, tank, date range, or event type. For telecom tower operators or construction contractors managing dozens or hundreds of remote sites, this centralised view replaces fragmented phone-based check-ins and manual logs.
Get Started
Stop Losing Diesel You Cannot Account For
Navionyx will handle the sensor installation, calibration, and platform setup. You get live fuel visibility and theft alerts from day one.
AIS-140 Certified · DPIIT Recognised · Incubated at SINE IIT Bombay.
