The GRP-540M provided by ICP DAS is a 4G gateway for Ethernet or serial port. With GPS function, the GRP-540M can also be used as a GPS tracking system. It can be used in M2M application fields to transfer the data from remote I/O, Modbus data or video of the camera via mobile network. With its high performance CPU, the GRP-540M can handle large amount of data and are suit for used in the harsh industrial environments. The GRP-540M is equipped with 4G module, Ethernet interface, CAN Bus, and GPS module.