A UST monitoring system is a release detection system that tracks fuel levels within an underground or aboveground storage tank over a period of time to see if the tank is leaking. It will also provide measurements of the fuel level, volume and temperature, water level and volume, and high and low fuel level warnings.  Many systems are capable of monitoring double-wall tanks and lines, pressurized piping and providing remote communication. UST monitoring systems are also referred to as fuel management systems, automatic tank gauge, and leak detection systems.