Features:
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 M1 card (Frequency: 13.56 MHz). (DS-K1102AM/DS-K1102AMK/DS-K1102AEMK)