100PCS 125KHz RFID Keyfobs Access Control Key Fobs Card RFID Keychains for Door Access Control System TK4100 / EM4100 Token Tags

This 125KHz EM4100 chip RFID keyfobs is suitable for door access control system, video intercom system. Can work with 125KHz type RFID access controller, RFID reader, RFID outdoor camera. Not support copy, write. Can't work with 13.56MHz type RFID reader. Product Feature 1. Waterproof RFID key tags proximity door control access. 2. Each key fobs with a unique ID number on it. 3. Suitable for 125KHz type card reader and RFID access controller, fingerprint machine. 4. Widely used at apartment, office, park and other places. 5. Brand new and high quality ABS material. 6. Support Read only, not support copy / write. Product Description 1. Material: ABS waterproof material 2. Color: Blue / Red / Black / Green / Yellow optional. 3. Support: Read only, not support copy / write. (If you want writable keyfobs, need to buy EM4305 chip) 4. Working Frequency: 125KHz 5. Chipe: TK4100 / EM4100 chip 6. Each keyfob has metal keyring and unique ID number on it. 7. Standard: ISO14443A 8. Package included: 100pcs keyfobs