RFID Middle Range Card Reader .RFID Middle Range Card Reader1. General Description: RF-101 middle range reader apply the advanced RFID circuit board design ... system, attendance, anti-theft , etc, long distance RFID system.2. Characteristics: Operate Frequency 125KHz with inside antenna ... u .E.M 4100 or compatible ID card (64bits,Manchester code)Reader range above 100cmIn the effective distance, ...