5/10pcs GEN2 CUID Android App MCT Modify UID Changeable Tag Keyfob NFC 1k S50 13.56MHz Card Block 0 Writable HF 14443A
Buy 10 reusable NFC key fobs with changeable UID, compatible with Android apps and access control systems. Featuring S50 1K chip, 13.56MHz frequency, writable Block 0, and HF 14443A standard. Perfect for smart locks, security, and event management.
Key points
- Changeable UID – Reuse tags across multiple devices and systems
- Fully writable Block 0 for custom data storage
- Compatible with Android apps for easy configuration
- High-performance S50 1K chip with 13.56MHz frequency
- Durable design ideal for daily use in access control and security View product presentation
Color: 5KeyCUID




France
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Product presentation
Unlock Smarter Security: Customizable NFC Key Fobs for Full Access Control!
Enhance your access control system with our premium 10-pack of reusable NFC key fobs featuring changeable UID technology. Designed for seamless integration with Android apps, these Gen2 MCT tags support full customization via mobile applications, allowing you to modify the UID and write data to Block 0. Built with reliable 13.56MHz frequency and compliant with ISO/IEC 14443A standards, each tag uses high-quality S50 chips (NFC 1K) for consistent performance. Ideal for secure entry systems, employee badges, smart locks, or event access, these writable RFID tags offer a flexible and durable solution for modern access management needs.
| Brand Name 5YOA |
| High-concerned chemical None |
| Origin Mainland China |
| Model Number KeyCUID |



















