20pcs UID Changeable RFID Sticker Tags 13.56MHz Rewritable
20pcs UID Changeable RFID Sticker Tags 13.56MHz Rewritable
20-Pack UID Changeable RFID Sticker Tags – 13.56MHz Rewritable Proximity Labels
Upgrade your RFID projects with these versatile UID Changeable RFID Sticker Tags. Operating at 13.56MHz (Block 0 rewritable), these compact 25mm stickers let you copy, overwrite, and reuse NFC/RFID data with ease — perfect for developers, makers, and professionals working with proximity-based systems.
Key Features
- UID Changeable (Block 0 Writable): Freely rewrite the UID sector for full cloning and customisation capability.
- 13.56MHz Carrier Frequency: Compatible with standard ISO 14443A readers and writers.
- Domestic 213 Chip: 144-bit storage capacity with ultra-fast 0.1ms read/write response time.
- Long Erase Life: Rated for up to 100,000 write cycles — built for repeated use.
- Compact Sticker Form Factor: 25mm diameter; flexible packaging materials including dry inlay, wet inlay, PET, coated paper, and synthetic paper.
- Reading Distance: 0–10cm; induction distance 30–50cm.
- Wide Application: Ideal for logistics, retail, manufacturing, apparel, anti-counterfeiting, traffic management, identification, libraries, food tracking, automotive, and aviation.
- Pack of 20: Generous quantity for testing, prototyping, or deployment.
Technical Specifications
| Frequency | 13.56MHz |
| Chip | Domestic 213 |
| Storage Capacity | 144 bits |
| Read/Write Time | 0.1ms |
| Reading Distance | 0–10cm |
| Induction Distance | 30–50cm |
| Erase Life | 100,000 cycles |
| Size | 25mm diameter |
| Package Qty | 20 pcs |
| Country of Origin | Made in China |
What's in the Box?
- 20 × UID Changeable RFID Sticker Tags (13.56MHz, Block 0 Rewritable)
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Frequently Asked Questions
Q: What does "UID Changeable" or "Block 0 Rewritable" mean for these RFID tags?
A: Standard RFID tags have a factory-locked UID (Unique Identifier) that cannot be altered. A UID Changeable (Block 0 Rewritable) tag allows you to overwrite the UID sector using a compatible reader/writer, enabling you to clone or duplicate existing card credentials for testing or custom access-control systems.
Q: What equipment do I need to read and write these 13.56MHz RFID sticker tags?
A: You need an ISO 14443A-compatible NFC/RFID reader-writer (such as an ACR122U, PN532-based module, or similar 13.56MHz device) along with appropriate software (e.g., MFRC522 libraries for Arduino, or dedicated card-management apps). These tags are not compatible with 125kHz systems.
Q: Can these RFID stickers be used outdoors or in industrial environments?
A: Yes. Available in PET, coated paper, and synthetic paper formats, these tags suit a broad range of environments including logistics warehouses, manufacturing floors, retail shelving, and apparel tagging. For harsh outdoor or wet environments, the PET or synthetic paper variants offer greater durability.
Q: How many times can I rewrite these RFID tags?
A: Each tag is rated for up to 100,000 write cycles, making them highly suitable for prototyping, iterative testing, and long-term deployment scenarios where data needs to be updated regularly.