NFC is a set of standards, maintained by the NFC Forum, for very short-range communication at 13.56 MHz. Technically it is a form of HF RFID. What sets it apart is that NFC readers are built into most modern smartphones, so any member of staff with the right app can identify an asset simply by tapping their phone against its tag.
How NFC works
When a phone's NFC antenna comes within a few centimeters of a tag, the magnetic field powers the tag's chip, and the two exchange data. Passive NFC tags have no battery. The phone reads the tag's UID — a unique serial number — and any data stored in its memory, usually in the NDEF (NFC Data Exchange Format) standard, such as a URL or a short text record.
The very short range is intentional. It makes a read unambiguous: you know exactly which asset you meant because you touched it. It also makes accidental reads unlikely.
NFC tag types
The NFC Forum defines tag types 1 to 5, based on different underlying chip families. In practice, asset teams mostly meet adhesive stickers, key fobs, hard epoxy discs and on-metal NFC tags built around common chips such as the NTAG series. Memory ranges from under 200 bytes to a few kilobytes — plenty for an ID or a link, not for a full asset record, which belongs in the register.
NFC vs QR codes
| Item | NFC | QR code |
|---|---|---|
| How it is read | Tap a phone on the tag | Point a camera at the label |
| Needs line of sight | No (but must be within a few cm) | Yes |
| Works when dirty or scratched | Usually, the chip is sealed | Often not, if the code is damaged |
| Can be photocopied | No — UID is in the chip | Yes — anyone can copy a printed code |
| Cost per tag | Higher than a printed label | Very low |
NFC suits assets that live in dusty, greasy or outdoor environments where printed codes wear off, and situations where you want some assurance that the scan came from the real tag rather than a photo of a label.
NFC vs UHF RFID
NFC is one-to-one and close range: tap, read, done. UHF RFID is one-to-many and long range: sweep a reader across a room and collect hundreds of tags. NFC needs no extra hardware; UHF needs dedicated readers. If you need to count whole rooms quickly or detect assets automatically at doorways, choose UHF. If you need reliable, phone-based identification of individual items, NFC is simpler and cheaper to run.
Where NFC is used in asset management
- Maintenance rounds — technicians tap equipment to open its history and log the job against the right asset.
- Check-in / check-out — tap a tool or device to issue or return it.
- Spot checks — confirm an asset is where the register says, without needing a scanner.
- Harsh environments — plant, vehicles and outdoor equipment where labels fade.
Limitations
- Read range is a few centimeters, so it is not suited to bulk counting.
- Metal surfaces detune standard NFC stickers — use on-metal NFC tags for steel equipment.
- Each tag costs more than a printed label.
How Asetavo uses NFC
NFC tagging is included from the Growth plan. You link a tag to an asset once; afterwards anyone with the Asetavo mobile app and the right role can tap it to view the record, move it, check it out or start a maintenance task — every action is written to the audit trail. You can mix NFC with QR, barcode and (on Business) UHF RFID in the same register.