RUT951 is a robust compact and versatile powerful product for IoT and M2M applications. It supports dual SIM, and has a SIM failover function that can be automatically switched to a separate SIM, and uses multiple communications contractors SIM to provide redundancy for communication connectivity. -4G LTE compatible industrial cellular router with wide operating temperatures and metal housing (some resins) for internet connectivity via Ethernet (4 ports) or Wi-Fi. Compatible with digital I/O that can be used for remote monitoring and control; Compatible with Modbus and DNP3 and can be used in OT and PA fields. It also supports MQTT so it is possible to build systems on the cloud.