BRT445 Dual-SIM Industrial Router is an IoT wireless communication router. It uses the public LTE cellular network to provide long-distance, wireless, and high-volume data transmission for users. It provides one RS232 (or RS485/ RS422), four Ethernet LANs, one Ethernet WAN, and one Wi-Fi interface to connect serial devices, Ethernet devices, and Wi-Fi devices at the same time, enabling transparent data transmission and routing functions. The product has been widely used in the M2M industry of the Internet of the Things industry chains, such as smart power grids, smart transportation, smart homes, finance, and other fields.