125KHZ LF Smart RFID Cards
We can offer EM4200, TK4100 (totally compatible with EM4200 chip), ATMELT5577 and compatible HID 125KHZ LF Smart RFID Cards, mostly LF Smart RFID Cards are read only like EM4200, TK4100 etc. But ATMEL T5577 and HID can read and re-write data inside. Customers usually use this 125KHZ LF Smart RFID Cards for door access control or hotels, compare to HF and UHF Smart Cards it will simple construction, copper coil antenna will be more durable when these cards are working.
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