Ultralight C ULC RFID Key Fob, 13.56MHz Contactless Ticket IC MF0ICU2 RFID Key Fobs, NFC Key fob Token Tag Key Cards Compatible with Upgraded SAFLOK, KABA, ONITY and Salto Locks (Gray,50Pcs)

Please note that this product is not compatible with AMIIBO and 125kHz readers. Ensure your system supports the ISO14443A protocol and Ultralight C extended commands before purchasing. Storage Partition Planning Page0-Page1: Store the unique serial number (UID), which cannot be modified. Page3 (OTP area): one-time programming area, cannot be erased after writing, and needs to be planned in advance for use (e.g. anti-counterfeiting logo). Page4-Page15: User readable area, initial value is 0, supports flexible configuration (e.g., storage amount, counter, etc.). Counter Function Built-in 16-bit counter can be used for amount or mileage counting, need to avoid logic errors caused by overflow or repeated use. Note 1:Field programmable read-only locking function per page for first 512-bit. Note 2:Read-only locking per block for the memory above 512 bit. Note 3:The apps like NFC Tools, NFC TagInfo can read the Serial Number of the Ultralight C key fobs. Note 4:MIF-ARE and MIF-ARE Ultralight are registered trademarks of NXP B.V. and are used under license. Note 5:Strictly follow the ISO 14443A protocol, need to ensure that the reader supports the protocol and Ultralight C extended instructions (such as 3DES certification). Note 6:Some access control/door lock systems (e.g. SAFLOK, KABA) require a special key format and cannot directly reuse cards from other systems.

• Detail: Made of ABS material, waterproof, drop-proof, high temperature resistant, stable and durable function, long service life. Strictly follow the ISO14443A protocol, need to ensure that the card reader supports the protocol and Ultralight C extended instructions (such as 3DES certification)
• Chip: mifare Ultralight C MF0ICU2 chip, working Frequency: 13.56 MHz, with 192-bytes usable memory. Anti-cloning support by unique 7-byte Serial Number for each device, the Serial Number cannot be changed or rewrited. 32-bit user programmable OTP area. Field programmable read-only locking function per pagefor first 512-bit (Note: The app like NFC Tools, NFC TagInfo can read the Serial Number of the ULC key fobs)
• Compatible: Compatible with Newly upgraded SAF-LOK, KA-BA, ONI-TY and SA-LTO Locks. NOT compatible with AMII-BO and 125kHz Readers. This mi-fare ULC keyfob MF0ICU2 can be used on most access control security systems. Some access control/door lock systems (e.g. SA-FLOK, KA-BA) require a special key format and cannot directly reuse cards from other systems. (Note: If you want to add the ULC keyfob to your lock system, please ensure that your system is the same frequency)
• Lock Bytes Irreversibility: Lock0 and Lock1 of Page2 are used to lock the storage page as read-only and cannot be modified after locking. Lock bits are set by binary bits (e.g., 11110000 corresponds to locked pages 4-7), which should be carefully planned and then written to avoid misuse leading to permanent locking of data
• Authorized Entry: The managers enter the unique identification serial number of the key fob into the access control system database and associate it with specific personnel and regional permissions through specialized card reader devices and management software. In the company's access control system, the employee's key fob serial number and the employee can enter the office floor, specific rooms and other permissions bound. Requires authorization to use, can not directly copy the information