IoT gateway, a device for processing signals from measurement sensors, analyzing and consolidating data, buffering, and transmitting it to a superior system. The device is designed to operate in harsh environmental conditions and can be equipped with a local data storage (NVMe), WLAN/WiFi communication module, DVI-D visualization panel, environmental sensors (temperature, humidity measurements, etc.), and programmable GPIO inputs/outputs. The device can function as a controller that triggers a specific process based on locally collected data.