The Industrial Wireless Ethernet Devices offer wired and wireless dual networking interfaces between LAN & WLAN. They serve as bridges capable of transmitting transparent packages among LAN, Wireless LAN and Serial Port RS-232/422/485. All wireless devices conform to IEEE802.11g/b with WEP/WPA encryptions so as to build a secure network. They are suitably applied in places difficult or impractical to wire, and surroundings where mobile user interfaces are highly requested. It is also useful for mobile user interfaces, especially in an industrial surrounding.