Proximity RFID ISO card covers the Low frequency 125KHz, and High frequency 13.56MHz technology, To achieve contactless transmission of data, electromagnetic waves transmit the data between the RFID chip and reading devices. Lots of companies use proximity card to control physical access. An employee holds their card within a few inches of the reader.

The RFID proximity cards are optional with finely laminated blank card, and pre-printed cards. the pre-printed RFID cards are done in factory with offset printing, and silk-screen printing.

Proximity Cards

LF ICs	Frequency	RF Protocol	Memory	Anticolision	Security
EM4100/EM4102	125KHz	/	64bit Unique R/O	no	/
GK4001	125KHz	/	64bit Unique R/O	no	/
EM4550	125KHz	/	128 Byte R/W	no	yes
Atmel T5567	125KHz	/	330 bit R/W	no	yes
Hitag1	125KHz	/	2048 bit R/W	yes	yes
Hitag2	125KHz	/	256 bit R/W	yes	yes
HitagS	125KHz	/	2048 bit R/W	yes	yes