Leakwise is a series of oil sheen on water detection and oil on water monitoring systems. Leakwise sensors use a proprietary high-frequency electromagnetic energy absorption technology implemented on floating devices that follow water levels accurately. Since water absorbs more electromagnetic energy than hydrocarbons, changes in the absorption rate of water indicate the presence or buildup of a hydrocarbon layer, starting as low as 0.3 mm.

A Leakwise system is comprised of a sensor (or multiple sensors) connected to a controller.