The Ethernet transmitter module adopts an integrated structure and a slide rail for easy on-site installation and use. It is very suitable for transmitting and transmitting 4-20MA current signals of various environmental sensors to the Ethernet. Make the sensor an independent access node on the network, and transmit information to any field within the reach of the network, including the enterprise intranet and the Internet, to achieve the unification of the measurement and control network and the information network. The microcomputer in the network can observe the measurement information through the browser.