125kHz ID Card Keyfob is compatible with all RFID ID card readers to gain access. Each 125kHz ID Card is pre-programmed with an unique ID Number,which is printed on the card.
Please note that this RFID card is read only and not rewritable.
125kHz ID Card Keyfob can be used to multiple applications, such as,entrance guard system,staff attendance,company access,identification and so on.
Up to 6cm