... to complex application circumstance.2.one antenna ports for added flexibility, reduce hardware ... or fixed frequency(set by software)Antenna ports1antanna port outside, SMA connectorMax RF ... 70% of reading range(depend on antenna)Communication interfaceType ARS-232RS-485Wiegand26/34 Type ... °F~ 185°FWork status indicationBuzzer, LED, antenna indicator light, communication indicator light, power indicator ...