Emerald Marine Products (also known as Full House Ventures) is a manufacturer of the ALERT man-overboard alarm system. It sets off a piercing audible alarm in the wheelhouse upon immersion in water, and can be wired to stop an engine and set a waypoint on a chart plotter. The company caters to tows, tugs, and barges, singlehander and blue water voyagers, dredging, marine construction and marine terminals, research vessels, commercial fishermen, military and law enforcement vessels.