What Is The Maximum Range Of RFID? 

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125KHz Low Frequency RFID Card commonly is 5-10CM, also can reach about 1 meter.

13.56MHz High Frequency (HF) Passive RFID Tags commonly are 5-10 CM, and you can use a single or multi port reader plus custom antennas to extend the read range to longer tag read distances or a wider RFID read zone.