13.56 Mhz RFID Keyfob

13.56 Mhz RFID Keyfob
These keyfobs utilize Near Field Communication (NFC-range) frequencies. When placed near a compatible reader like the RC522, the internal antenna coil harvests energy from the reader's magnetic field to power the chip and transmit its encrypted 8 Kbit data payload.

Why it’s a Secure Access Essential:
• Encrypted Communication: The FM1108 chip supports logic encryption, making it significantly harder to clone compared to older 125kHz technology. This makes it suitable for environments where security is a priority.
• High Memory Capacity: With 8 Kbits (1KB) of memory, these fobs can store more than just a serial number. You can store user permissions, time-stamps, or small data logs directly on the fob.
• Industrial Durability: Encased in rugged ABS plastic, these fobs are designed to handle extreme temperatures (from -45°C to 85°C) and the daily wear-and-tear of being attached to a keyring.
• Collision Protection: The chip features anti-collision logic, which allows a reader to distinguish between multiple fobs if more than one is presented at the same time.

Technical Capabilities:
• Frequency: 13.56 MHz.
• Chipset: FM1108 (Mifare S50 Compatible).
• Standards: ISO14443A.
• Read Range: Typically, 2cm to 5cm (highly dependent on the reader's antenna).
• Data Retention: Up to 10 years.

Best For:
The 13.56MHz fob is the primary choice for modern office security, public transport ticketing, university ID systems, and secure equipment checkout.