Our Industrial IoT gateway GT100-MQ-RS has the capabilities to connect various PLCs, fieldbus instruments and devices to the Cloud Servers over WAN by MQTT protocol, such as Microsoft Azure, Amazon AWS, and customized Servers.Supports connecting Modbus master and servers to the MQTT servers. Support MQTT connection through wired network. Supports TLS V1.2, ensuring a secure and safe communication. Supports updating and restarting the gateway remotely. JSON data encoding supported. users can customize the JSON content format. Supports debugging function on Modbus and MQTT side. Support publishing timestamp and time zone can be set. Power supply: 24VDC ( 11-30 VDC). Operating Temp: -4°F to 140°F ( -20ºC to 60ºC), Rel. Humidity: 5% -95%, non-condensing. Dimensions(W*H*D): 1.0 in * 4.0 in * 3.6 in (25 mm * 100 mm * 90 mm). https://sstautomation.com/Products/Ethernet/Modbus_MQTT/GT100-MQ-RS.html