Mifare ve Proximity Pro 1102A Series Card Reader Built-in audible beeper, RS-485 and Wiegand (W26/ W34) protocol, Tamper-proof alarm, Supports reading EM card (Frequency: 125 KHz) (DS-K1102AE/DS-K1102AEK – DS-1102AEM), Supports reading Mifare card (Frequency: 13.56 MHz). (DS-K1102AM/DS-K1102AMK/DS-K1102AEMK)