Abstract: A tank monitoring interface connects to many known automatic tank gauging systems. The interface deciphers serial data from existing tank monitoring controllers through a serial port on that tank monitoring controller. This serial data is extracted from the tank monitoring controller by serial commands issued by the interface. The tank monitoring controller response indicates the type of tank monitoring controller protocol that is connected to the interface, thus allowing the interface to display that particular tank monitoring controller's information on a graphics touch screen interface. The interface also interrogates the tank monitoring controller for pertinent alarm information allowing the ability to aurally and visually alert the user.