TK4100 Proximity Card Unnumbered

Proximity Cards contain a microchip pre-encoded during production and feature digital technology that is activated by the signal emitted from the card reader. They operate on passive power, meaning they do not require an internal battery or power source.
Custom logos and designs can be printed on both surfaces of these proximity cards. Widely used in access control systems and various other applications, Proximity cards operate at a frequency of 125 KHz in compliance with ISO standards.