UHF AZ-H9-23X23
Higgs-9 UHF RFID Inlay, 22.5 × 22.5 mm
- Chip
- Alien Higgs-9
- Antenna size
- 22.5 × 22.5 mm
- Read range
- up to 4.5 m (reference)
Application engineering
RFID Tags for Jewelry
Count a tray of rings in seconds every night and see at once whether a piece is missing or swapped.
Design for the real reading environment
Jewelry retail runs a strict inventory routine: high-value pieces are counted every day, often one by one against a register. RFID-tagged pieces turn that into a tray scan of a few seconds, and because every tag carries a unique ID, a missing or substituted piece shows up immediately rather than at the monthly audit.
The RF challenge is real: tiny tags, packed tightly, close to metal. Antenza lists small inlays suited to jewelry tags, such as a 22.5 mm square Alien Higgs-9 inlay and a 39 × 22 mm NXP UCODE 9 inlay. Conversion into loop or tail labels that attach to rings, chains and bracelets is available on request and confirmed with samples.
Jewelry counter realities
- 01
The nightly count eats the evening
Manual counting after closing is slow and error-prone, and still misses swaps.
- 02
Swap risk
A similar-looking piece substituted in a tray passes a visual count; only a serialized identity catches it.
- 03
Dense trays near metal
Dozens of tags almost touching, on metal pieces: the worst case for tag-to-tag interference and detuning.
- 04
Presentation matters
Tags must be small and discreet, attach without scratching, and come off cleanly at sale.
How Antenza supports jewelry programs
Small inlays for dense trays
Compact square and short-dipole inlays with high-sensitivity chips; we validate reads with your trays and reader during sampling.
Tag formats on request
Loop or tail labels, and adhesive tags for boxes and display cards, are converted to your design on request; we confirm the construction with samples before volume.
Serialized identity
Every tag carries a unique TID plus your EPC, so a tray scan checks identity as well as count.
Printable face
SKU, price and barcode can be printed on the tag face for counter staff who still need visible data.
Typical jewelry tag specification
Tray material, piece density and reader choice strongly affect results. We recommend sampling with your actual trays and reader before scaling.
| Frequency | UHF 860–960 MHz, EPC Gen2, RAIN RFID |
|---|---|
| Chips in the listed range | Alien Higgs-9, NXP UCODE 9; Impinj Monza 4 option |
| Listed inlays | 22.5 × 22.5 mm square (Higgs-9) · 39 × 22 mm (UCODE 9) |
| Tag format | Loop / tail label or adhesive tag, converted on request |
| Identity | Unique TID + your EPC for anti-swap checks |
| Read setup | Tray reader or handheld sweep at short range |
| Read range (reference) | Up to 4.5 m (22.5 mm square) and up to 10 m (39 × 22 mm) Reference only; depends on reader, antenna, power and the tagged material |
Products for this application
Small UHF inlays in our range suited to jewelry tags.
UHF 
UHF AZ-U9-39X22
UCODE 9 UHF RFID Inlay, 39 × 22 mm
- Chip
- NXP UCODE 9
- Antenna size
- 39 × 22 mm
- Read range
- up to 10 m (reference)
UHF AZ-M4-S01
Monza 4 UHF RFID Inlay, AZ-M4-S01
- Chip options
- Monza 4D / Monza 4E / Monza 4QT
- Antenna size
- On request
How ordering works
- 01
Specify
Share surface, read distance, chip preference and volume. We shortlist tags that fit.
- 02
Sample
Receive sample tags of the shortlisted designs to try in your own setup.
- 03
Validate
Test on your items, readers and printers. We adjust chip, size or format if needed.
- 04
Produce & ship
Volume production with 100% inline electrical test, then export shipping.
Frequently asked questions
Will tags read reliably when pieces are packed tightly?
Dense trays are the hardest case. Small inlays with good anticollision performance help, but reader antenna and power settings matter just as much. We validate with your trays and reader during sampling.
Do the tags damage or scratch jewelry?
A loop or tail tag is threaded through or around the piece and closes on itself, so no adhesive touches the jewelry. We confirm the construction and materials with samples.
Can we print price and SKU on the tag?
Yes, the tag face can carry SKU, price and barcode alongside the encoded EPC.
How does anti-swap detection work?
Each tag has a unique, factory-locked TID plus your EPC. A tray scan checks count and identity against the register, so a substituted piece appears as a mismatch immediately.
Further engineering reading
- How to Choose an RFID Tag: Seven Questions Before RFQ
Specify the surface, read event, available space, environment, data and delivery format. A seven-question checklist makes RFID samples and quotes useful.
- How to Test RFID Tags Before Approving a Bulk Order
Plan an RFID sample test with real items, controlled reader settings and acceptance criteria. Check RF behavior, encoding, adhesion and repeatability.
- RFID Read Range: What Changes the Result in Your Site
RFID read range depends on the complete system. Control power, antenna, surface, orientation and reader settings when comparing labels on real objects.
- RFID vs Barcode: Compare the Workflow Before the Label
Compare RFID and barcodes by line of sight, batch reading, item identity and failure handling. Build a pilot around labor saved and reliable exceptions.
Talk to an RFID engineer
Faster jewelry counts?
Tell us the piece types, tray layout and reader. An engineer replies within 24 hours with a shortlist and a sample plan.
Email us: sales@antenza.com