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I have a project that is using a 125Khz RFID cards,dots, stickers.
I need a card reader that has a read length of AT LEAST 4-7 metres.
The reader will collect all tags within that range and check them against an inventory.
I have not been able to find any RFID readers that have this range, and I am not sure if it is at all technically possible.
Does anyone know if this is technically possible with a 125khz RFID?
According to wikipedia http://en.wikipedia.org/wiki/Radio-frequency_identification the maximum range for 120–150 kHz (LF) is 10cm.