This is 2PCS version Power supply is not included, it is recommended to use a 12V Industrial DIN-Rail Power Supply. Please check the electronic User Manual Carefully before using! ^^ This is a RS485 device data acquisitor / IoT gateway designed for industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. ^^ The module features RS485 and Ethernet ports, uses screw terminals for power input, supports 9~24V wide range power supply. ^^ Rail-mount flame-retardant case design, small in size, easy to install.

It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring ^^ Bi-Directional Transparent Data Transmission Between RS485 And Ethernet