All of the relevant hardware products adopted by KH Highway Compound Access Card use the dual-frequency mode (433M+13.56M). It supports logic encryption cards, CPU cards, dual-interface CPU cards / M1 and Mifare Pro. The triple DES encryption algorithm is

It is a long-range active e-label for positioning and automatic identification of people. When a person wears a label that carries a fixed number, the label will automatically send out 3 wireless telecommunication signals per second to the reader, thus en