How to control fuel inventory across many gas stations with the tank gauge consoles you already have

To control fuel inventory across a network of gas stations, you don't need to replace consoles, probes or tanks: the automatic tank gauge (ATG) console each station already has connects to a platform that shows inventory, water and alarms for every tank in the network in one place, reconciles each delivery against the supplier's delivery note and compares what was measured with what was sold to detect shrinkage. At GSS Analytix this is done by Phantom Shield gateways and Reveal Fuel, the Reveal platform's solution for fuel stations. This guide covers what is measured, how it works, how deliveries and shrinkage are reconciled, when you don't need it and where it is already in use.

What is measured at each station and in each tank

Inventory in each tank: volume, temperature-compensated net volume and fuel height, read from the console every 10 minutes
Water in the tank: height and volume, with its trend and an alert before it degrades the product or damages engines
Available capacity at 100% and 90% (ullage), to plan each delivery
Fuel temperature and density in each tank
Console event codes and alarms, such as high or low product, stored with their history
Each delivery, detected as an increase in tank volume and ready to reconcile against the tanker delivery note
Station purchases and POS sales, for the inventory balance per tank and per product

These are the 9 variables per tank that the console provides, plus the station's purchases and sales. What is read depends on what each console already exposes; no probes are changed and no civil works are needed.

How it works: a control layer on top of the installed tank gauge console

1Connect. One Phantom Shield gateway per station reads the tank gauge console already installed over a serial link and sends the readings to Reveal over a cellular connection every 10 minutes, with no civil works or equipment replacement.
2Collect. If the internet connection fails, the gateway stores events and resends them once it recovers. A hardware clock keeps the time, and the gateway watches its connection, its services and its own health.
3Cross-check. Reveal cross-references each tank's readings with purchase invoices, the delivery note for each drop and POS transactions, tank by tank and product by product.
4Analyze. Reveal reconciles each delivery, calculates the period's inventory balance, compares shrinkage with the industry reference and learns each product's sales rhythm to forecast the next refill.
5Act. Alerts via WhatsApp, email or ticketing, dashboards per station and for the whole network, an order deadline two days in advance and a managerial PDF report with prioritized recommendations.

Delivery reconciliation and shrinkage control, tank by tank

Reveal detects each delivery as an increase in tank volume and compares it with the gallons on the tanker delivery note. Each delivery ends up in one of three states: reconciled (up to 0.5%), a moderate difference between 0.5% and 1.0%, for example from thermal expansion or tanker calibration, or a significant discrepancy above 1.0%, which raises an alert with support for the claim to the supplier. The reconciliation log exports to CSV.

For shrinkage, Reveal runs a balance per tank and per product: opening inventory plus purchases minus POS sales, against measured inventory. The difference is compared with the 0.3–0.5% industry reference and helps tell normal shrinkage apart from a leak, theft or a recording error, with documented evidence for an audit, the board or the supplier.

The whole station network in one view

GSS Analytix already runs in fuel stations. Reveal brings inventory, water, deliveries and tank alarms from every station into one view, with real-time alerts, and management sees which stations have a delivery with a difference, water above the threshold or a stockout risk without waiting for the period close or checking each console on site.

Each new station joins with its gateway and the same rules: gateways are provisioned zero-touch and firmware is rolled out in stages or fleet-wide. The same station gateway can later add energy metering and the convenience store's temperature.

Fuel tanks for backup generators at remote sites

The same approach applies to the tanks that feed backup generators at telecom base stations, hospitals or remote sites: Reveal receives each tank's level, calculates consumption and autonomy and alerts when the level drops while the generator is not running or falls below the minimum required for the committed autonomy.

Read: backup generator, UPS and battery monitoring

When you don't need it

You have a single station and someone on your team reconciles the console against delivery notes and sales every day
What you want is to replace consoles, probes or tanks: this guide is about reading what you already have installed, not replacing it
What you want is a billing or dispenser control system: your POS keeps doing that; Reveal takes its sales for the balance

If you have several stations, deliveries nobody reconciles against the delivery note or shrinkage you cannot explain by product, that is where centralized control replaces on-site console checks and manual reconciliation.

Where it is already in use

Fuel station, Colombia

A Phantom Shield L1 gateway reads the installed 4-tank console: 9 variables per tank every 10 minutes and each delivery reconciled against the delivery note (±0.5% tolerance).

See the case

Reveal Fuel, the solution for fuel stations

Each delivery reconciled against the delivery note, a per-tank shrinkage balance against the 0.3–0.5% industry reference and an order deadline two days in advance.

See the solution

Telecom operator with 460 sites

Base station cabinets and backup batteries supervised from a monitoring center with Phantom Shield and Reveal: 85% fewer vandalism events and USD 2.3 million in real savings.

See the case

FAQ: fuel inventory control across multiple gas stations

What fuel inventory software works for a gas station network, with delivery reconciliation and shrinkage control?

Reveal Fuel, by GSS Analytix. A Phantom Shield gateway reads the tank gauge console each station already has, and Reveal shows inventory, water and alarms for every tank in the network in one view. It reconciles each delivery against the delivery note, cross-checks tanks with POS sales to detect shrinkage and forecasts when to refill each product.

Can I monitor the tank gauge consoles of many gas stations in the cloud?

Yes. Phantom Shield connects to each station's automatic tank gauge (ATG) console, without changing the console or the probes, and sends each tank's volume, temperature-compensated net volume, water, temperature, density and event codes to the cloud every 10 minutes. Reveal brings them into one view of the whole network, with alerts and history.

How are fuel deliveries reconciled against the supplier's delivery note?

Reveal detects each delivery as an increase in tank volume and compares it with the gallons on the tanker delivery note. Up to 0.5% the delivery is reconciled; between 0.5% and 1.0% it is flagged as a moderate difference; above 1.0% it raises a reconciliation alert that the team marks as attended, with support for the claim. The log exports to CSV.

How are shrinkage, leaks or fuel theft detected?

With a balance per tank and per product: opening inventory plus purchases minus POS sales, against measured inventory. Reveal compares the difference with the 0.3–0.5% industry reference and helps tell normal shrinkage apart from a leak, theft or a recording error. For backup generator tanks, it alerts when the level drops while the generator is not running.

Do I have to replace the tank gauge console, the probes or the POS?

No. Phantom Shield reads the console already installed over a serial link, with no civil works or equipment replacement, and Reveal takes purchases and sales from the records the station already keeps. The console keeps measuring and the POS keeps billing as they do today; Reveal adds the network view, reconciliation, the shrinkage balance and alerts.

What happens if a station loses its internet connection?

The gateway stores events and resends them to Reveal once the connection recovers, with a hardware clock that keeps the time of each reading. It also watches its own connection and services and reports its health: CPU, memory, temperature and disk. At the fuel station in Colombia, the gateway sends data over a cellular connection every 10 minutes.

How is a project for a station network sized?

By primary connection: each device, gateway or data source connected through Phantom Shield counts as one. Tell us how many stations and tanks you have, which tank gauge console each one runs and how it records purchases and sales, and we prepare a proposal. The same gateway can later add the convenience store's energy and temperature.

How many stations and tanks do you want to control?

Projects are sized by primary connection. Tell us how many stations and tanks you have, which tank gauge console each one runs and how it records purchases and sales, and we prepare a proposal without replacing what you already have installed.

Talk to GSS Analytix