Realize bidirectional data transmission between RS232 or RS485 and Wi-Fi or Ethernet Modbus gateway function,Support Modbus multi-host polling, Modbus RTU & Modbus conversion Communication protocol,Full coverage of transparent transmission protocols, UDP/https/MQTT Data security cannot be ignored,https/MQTT protocols can all achieve transmission encryption and combine two-way certificate verification to data security Rich WIFI modes,AP,STA,AP+STA,Bridging and Routing network standards:IEEE 802.11.b/g Network transfer rate:11g:54Mbps 11n: 72.2Mbps interface:RS485 UART working mode: server, client, UDP, Modbus IP, MQTT baud rate:600bps-230400bps data bits:7,8 Verification method:No parity/odd parity/even parity Stop bit:1,2 indicator light:Power supply, WIFI power supply:DC6V-30V Power consumption:Power consumption Less than 0.7W working temperature:-40C-85C storage temperature:Storage temperature -40C-85C humidity:10%-90%, no condensation size:68.8x41.4x25mm The product appearance and printed words depending on the batch, but this does not affect use Colour:As Shown Material:plastic Package Contents: 1 x Wifi Serial Server Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.