The GTP-541M is an industrial smart 4G remote terminal device that is backward compatible with the 2G/3G frequency band and can be used with different software interfaces to meet user needs. 4G remote terminal equipment transmits I/O signals to the remote management platform through LTE/WCDMA/GPRS. ICP also provides related software support to facilitate customers to quickly establish monitoring programs. These softwares include VxServer. Virtual COM software such as VxComm. In addition, users can switch GTP-541M different functions such as ModBusSMS, DIOSMS and RMV through SD card replacement firmware to meet different application requirements. The powerful features of the GTP-541M reduce user development costs and time, making it ideal for IoT applications.