Proximity cards are normal PVC cards that use RFID technology to communicate with the reader. They are commonly used for door access control systems, loyalty programs, time attendance, and other similar applications because they are inexpensive and secure ways of identifying people. CARDLINE is a leading supplier of low-frequency (LF) proximity cards in Dubai, UAE. Please browse our range of cards and readers for secure access control in Saudi Arabia, the Middle East, and Africa. Each card comes with a unique serial number for enhanced security.