The Inventory Management System increases supply chain productivity by integrating both level and weight data in a single information system. The system digitally links with Bindicator level instruments and Kistler-Morse weighing systems, and accepts additional process data from any 4-20mA device. Through a web connection, users can remotely view real-time and historical inventory data for multiple vessels in a browser-based graphical interface. Data can be downloaded for manipulation in database or materials planning applications. The ORB also functions as an information server to routinely transmit data to remote client databases, or to alert users of inventory and alarm conditions via email.