... District -Frequency: 13.56 MHz -Communication Speed: 106KBoud -Read Distance: 2.5~10cm -Read Interval: 1~2ms -Working Temperature: -20~85 ... Contact IC: SLE4442, SLE4428, Simens4428, Simens5528, AT24C(32k/64k), etc RFID IC: T5567, S50, S70, T5577, TK4100, GK4001 ID, EM4100/EM4102 ...