Abstract: An improved system and method for an Internet-accessible RTU system is presented. An embodiment of the present invention comprises at least one field sensor device, a RTU connected locally with one or more field sensor devices and configured to transmit data to and receive data from the field sensor devices. The RTU is also configured to be an Internet web server and an email client. A communication device is used in conjunction with the RTU to enable the RTU to transmit and receive data over an Internet connection. The RTU is programmed to process data received from the field sensor devices and communicate the processed data over the Internet connection. A WWW-enabled device is connected to the RTU via the Internet connection and the WWW-enabled device is programmed to transmit data to and receive data from the RTU via the Internet connection.