Technical indicators Operating frequency: 2.4GHz~2.5GHz Working style: active and passive combination Antenna parameter 1: gain: 16dBi; Horizontal plane lobe width: 30°; Vertical plane lobe width: 25°; Front-to-back ratio: >25dB Antenna parameter 2: standing wave ratio: <1.5; Polarization direction: vertical Communication interface mode: RS232, RS485, Wiegand, TCP/IP network port Communication method: active mode (after the reader reads the tag, it sends …