Asset tracking is the part of asset management that answers two questions at any moment: where is it and who has it. It sounds simple. In practice it is the difference between a register you trust and a register everyone quietly ignores.
This article explains what asset tracking is, the technologies behind it, how a tracking event actually flows from a tag to a record, and how to choose an approach that matches your assets and budget.
Asset tracking, defined
Asset tracking is the process of identifying physical items with a unique tag and recording each time they are seen, moved, assigned or returned, so that the asset register reflects reality.
Every tracking system has the same three parts:
- An identifier on the asset — a printed ID, barcode, QR code, NFC tag or RFID tag.
- A way to read it — a person with a phone camera, a handheld scanner, or a fixed RFID reader that reads automatically.
- A system of record — the register, which stores each read as an event with a time, place and person.
The technology choices change how often you get a read and how much effort each read costs. The principle does not change.
Two kinds of tracking: event-based and continuous
It helps to separate two styles of tracking, because people often expect one and buy the other.
Event-based tracking records a location or custodian when something happens: a technician scans a tool out of the store, an auditor scans a desk, a portal reader sees a pallet pass through a door. Between events, the system knows the last known location. QR, barcode, NFC and most RFID deployments work this way.
Continuous tracking reports position all the time, typically with GPS or real-time location systems using active tags and batteries. It suits vehicles and high-value mobile equipment, but it is expensive per asset and needs power.
For the vast majority of equipment — tools, IT hardware, furniture, medical devices, instruments — event-based tracking at the right checkpoints gives you nearly all of the value at a small fraction of the cost. Asetavo is an event-based system: it tracks by scans and by RFID reader events at zones, and it does not do GPS tracking.
How a tracking event flows
Take a common example. A calibrated pressure gauge is stored in the workshop and needed on a site job.
- The technician opens the mobile app and scans the gauge's QR label.
- The app shows the asset record and its availability. The technician checks it out to themselves, due back Friday.
- The register now shows: custodian = technician, status = checked out, due date = Friday.
- On Friday, the gauge is scanned back in. The event history now holds both movements with timestamps.
- If Friday passes without a check-in, an overdue alert fires.
With UHF RFID the flow is the same, but step 1 can happen without anyone scanning: a reader at the workshop door sees the tag leave, records the event, and — if the gauge is not allowed to leave that zone — raises a zone-exit alert.
The main tracking technologies
| Technology | How it is read | Typical read distance | Reads many at once? | Relative tag cost |
|---|---|---|---|---|
| Barcode | Scanner or phone camera, line of sight | Close range | No | Lowest |
| QR code | Phone camera, line of sight | Close range | No | Lowest |
| NFC | Tap with an NFC phone | A few centimetres | No | Low |
| UHF RFID (passive) | Handheld or fixed reader, no line of sight | Up to several metres, depending on tag and reader | Yes | Low (labels) to moderate (on-metal) |
| GPS / active RTLS | Battery-powered device reports position | Continuous | n/a | High |
Most organizations mix these. Furniture and low-value items get QR labels; keys and high-touch items get NFC; high-value or fast-moving equipment gets UHF RFID. The important thing is that all of them feed one register. Our RFID vs NFC vs QR guide goes deep on the trade-offs.
What good asset tracking gives you
- Last known location and custodian for every item, without asking around.
- A complete movement history, useful for investigations, insurance claims and audits.
- Faster audits, because verifying an asset becomes a scan rather than a search.
- Fewer duplicate purchases, because people can see what already exists and whether it is available.
- Accountability, because every check-out is attributed to a person.
- Early warning when something leaves an area it should not.
Common mistakes
Tagging before deciding what to record
Teams buy labels, tag everything, and then realize they never agreed categories, locations or naming. Decide your register structure first; our guide on building an asset register covers this.
Choosing one technology for everything
RFID on a plastic chair is wasted money; a QR label on a server in a locked rack means nobody will ever scan it. Match the tag to the asset and to how you will read it.
Tracking location but not custody
For portable equipment, who has it matters more than where it was last seen. A check-in/check-out habit closes most of the gap. See check-in/check-out for tools and equipment.
Never verifying
Even good tracking drifts. Schedule periodic stock-takes so small errors do not compound.
How to choose an approach
Answer four questions:
- How many assets, and how valuable? Hundreds of low-value items favour QR; thousands of valuable, mobile items can justify RFID.
- How often do they move? Static assets need a label and an annual audit. Frequently moving assets need check-outs or reader coverage at key doors.
- What is the cost of a loss? If one missing item costs more than the tags for a whole site, invest in automatic detection.
- Who will do the reading? If nobody will scan, you need readers that do it for them.
Asset tracking with Asetavo
Asetavo lets you start with the phone you already have. The mobile app scans QR, barcode and NFC out of the box, works offline, and supports UHF RFID sleds for bulk reads. When you want automatic tracking, fixed readers at doorways feed zones and real-time alerts. Every scan, check-out and reader event lands on the asset's history in the register.
The free Starter plan covers 100 assets and 2 users; NFC arrives on Growth, and UHF RFID readers, zones and alerts are part of Business. See pricing for details.
Key terms
If you are new to the vocabulary, these glossary entries are a good next step: RFID, EPC, RFID portal, asset lifecycle and zone-exit alert.