One Tamper-Evident Label for UHF and HF Workflows
Our tamper-evident hybrid label combines an M4QT UHF interface and an NXP ICODE SLIX HF interface in an 85 × 54 × 0.3 mm adhesive label. It is intended for projects that need UHF identification during logistics together with close-range HF verification at another point in the product journey.
The printable coated-paper face supports visible product information, while the internal antenna structure is designed to break during forced removal. The physical removal response and both radio interfaces must be tested on the actual package or asset before bulk production.
Longer-Range Operational Identification
The M4QT interface supports ISO 18000-6C Gen2 operation in the published 920.5–924.5 MHz configuration. It can be used with compatible UHF equipment for inventory, logistics and controlled distribution workflows.
Close-Range Product Verification
The NXP ICODE SLIX interface operates in the published 13.0–14.5 MHz range. Reader compatibility must be checked against the intended HF equipment and application before encoding or deployment.
HF operation should not automatically be treated as universal smartphone compatibility. Confirm the exact reader, handset requirement and intended data interaction during sample evaluation.
Tamper-Evident Hybrid Label Specifications
| Specification | Published Configuration | Order Review Point |
|---|---|---|
| Finished label size | 85 × 54 × 0.3 mm | Confirm the flat bonding area and print orientation. |
| Antenna size | 75 × 44.33 mm | Keep the antenna area clear of folds, edges and metal. |
| Chip configuration | NXP ICODE SLIX and M4QT | Define which process uses each RFID interface. |
| UHF protocol | ISO 18000-6C Gen2 | Confirm reader and destination-market compatibility. |
| Operating frequencies | 920.5–924.5 MHz and 13.0–14.5 MHz | Verify both frequency interfaces with the selected equipment. |
| Published memory | 96-bit TID/UID, 128-bit EPC/block, 512-bit user memory, 32-bit access and 32-bit kill | Confirm the allocation, encoding length and lock settings for each chip. |
| Face material | Printable coated paper | Submit the artwork and required print durability. |
| Published free-air range | Up to 100 cm, reader dependent | Test UHF and HF ranges separately after installation. |
| Installation | Adhesive | Test adhesion and removal response on the actual surface. |
| Standard appearance | White; customization available | Confirm printing, codes, numbering and finished appearance. |
| Security characteristic | Tamper-proof structure | Approve the required damage pattern through sample tests. |
The published memory description combines information for a dual-chip label. Provide the required UHF and HF data maps separately so we can confirm which memory area stores each field.
Where a Dual-Frequency Label Adds Procurement Value
| Process Stage | Suitable Interface | Buyer Task | Required System Check |
|---|---|---|---|
| Production release | UHF or HF | Associate the label with an approved product record. | Encoding rules and printed-to-digital mapping |
| Warehouse handling | UHF | Identify tagged items without line-of-sight barcode scanning. | Reader layout, tag spacing and installed read rate |
| Distribution inspection | UHF or HF | Compare the captured identity with the expected shipment record. | Authorized reader access and exception handling |
| Close-range verification | HF | Read or verify an item at a controlled short distance. | HF reader compatibility and application response |
| Removal investigation | Physical and RFID inspection | Check visible damage and RFID response after peeling. | Approved removal-test method on the actual substrate |
A hybrid label is useful only when both interfaces have defined jobs. If the project requires only warehouse scanning or only close-range verification, a single-frequency label may provide a simpler data and reader configuration.
Confirm the Tamper Response on Your Product
Surface Bond
Adhesive performance varies between coated cartons, plastics and glass. Surface texture, contamination, curvature and storage conditions affect how the label bonds and how it responds when lifted.
Antenna Damage
The internal antenna is intended to break during forced removal. Pilot testing should include edge lifting, partial peeling and complete removal rather than checking only the intact label.
Post-Removal Reading
Read both frequency interfaces after each removal test. Do not assume that damage visible on the face material proves that every required RFID circuit has become unreadable.
Separate the UHF and HF Data Plans
UHF Operations Data
Define the EPC format, numbering sequence, user-memory content and any required access or kill settings. Also specify whether UHF records must match a barcode, printed serial number or HF identifier.
- EPC length and starting sequence
- User-memory fields
- Access and kill-password requirements
- Reader and middleware data format
HF Verification Data
Identify the required HF reader, record structure and application behaviour. If a web address, product record or verification result is expected, define where that information is stored and how the reader application retrieves it.
- HF reader or device model
- Required record type and content
- Read-only or update requirements
- Linkage with the UHF identity
Two radio identifiers do not authenticate a product by themselves. Genuine-product verification requires an authorized database or application that checks the captured identity, expected item record and status.
Installation Conditions That Affect Both Interfaces
Keep Clear of Metal
The published configuration is not specified as an on-metal label. Direct metal mounting or close metal proximity can detune an antenna. Review our UHF anti-metal tags when metal installation is unavoidable.
Avoid Folds and Sharp Curves
The 75 × 44.33 mm antenna area should remain flat. A package edge, bottle curvature or crease may change radio performance or create premature mechanical stress.
Test the Final Contents
Liquids, dense products, nearby tags and package construction can affect the read zone. Evaluate filled packages rather than empty packaging samples whenever possible.
Printing, Serialization and Order Preparation
We can review the printable face, encoded data and packaging requirements after the dual-frequency workflow is defined. Supply separate UHF and HF data instructions and identify any relationship between the two identifiers.
| Order Item | Information to Provide | Approval Check |
|---|---|---|
| Printed face | Logo, text, barcode, serial format, colour and orientation | Artwork position and legibility on the 85 × 54 mm label |
| UHF encoding | EPC sequence, user data, password and lock requirements | Reader verification and exported-data format |
| HF encoding | Record content, identifier mapping and access requirements | Readback with the intended HF reader |
| Identifier relationship | Rules connecting UHF, HF and printed serials | Sample mapping records before production |
| Roll and packaging | Roll direction, core or packing preference and sequence rules | Compatibility with application and receiving processes |
Sample Validation Sequence
Define Both Read Tasks
Identify the UHF process, HF process, readers, software and expected data at each checkpoint.
Apply to Real Products
Use the actual substrate, contents, surface preparation and intended label position.
Test Both Frequencies
Record installed UHF and HF performance separately with the final reader equipment.
Perform Removal Tests
Check visible damage and both RFID responses after partial lifting and full removal.
Information Needed for Model Review and Quotation
Technical Requirements
- Product, package material and label position
- Destination country and required UHF band
- UHF and HF reader models
- Target reading distance for each interface
- Expected damage after attempted removal
Commercial and Data Requirements
- Required sample and order quantities
- Printing artwork and serialization format
- Separate UHF and HF encoding files
- Identifier-matching and memory-lock rules
- Roll direction, packaging and destination
Tamper-Evident Hybrid Label FAQs
Why use UHF and HF in the same tamper-evident label? +
UHF can support operational identification at a longer range, while HF supports controlled close-range reading. Combining them can connect logistics and inspection workflows without applying two separate labels.
Can an ordinary smartphone read the HF interface? +
Smartphone compatibility should not be assumed from the HF frequency alone. Provide the intended phone or reader models and required record type so compatibility can be checked during sampling.
Does removing the label disable both RFID interfaces? +
The internal antenna structure is designed to break during forced removal. Because actual damage depends on the substrate and peeling method, both UHF and HF interfaces must be tested after partial and complete removal.
Can the label be mounted directly on metal? +
The published configuration is not identified as an on-metal label. Metal can detune both RFID structures. Send the metal surface, available space and required ranges so a suitable construction can be reviewed.
Can the UHF and HF chips store the same identity? +
A defined mapping can connect UHF, HF and printed identifiers, but the two chips have separate memory structures. Provide the numbering rule and required relationship so each interface can be encoded and verified correctly.
What should be included in the pilot test? +
Test adhesion, printed appearance, UHF range, HF read response, data mapping, nearby-material effects, partial removal, full removal and post-removal readability with the intended readers and software.
Define Your UHF, HF and Tamper-Test Requirements
Send us the mounting surface, reader models, data structure, target ranges, artwork, quantity and destination country for a sample and quotation review.
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