The danger of falling overboard from a moving vessel or platform is a life threatening hazard in the offshore oil and gas and fishing industries. A new compact, water activated device, ALERT2 Man-Overboard Alarm System has been developed by Emerald Marine Products. The unit signals an immediate piercing audible alarm in the wheelhouse when immersed in water. It can even be designed to stop an engine or set a waypoint of a chartplotter. The small, 4 oz. Alert 2 does not bounce a signal off a satellite, but sends a direct signal to the vessel to alert personnel that someone has gone overboard. It then sends GPS coordinates for fast recovery, particularly in darkness or in rough seas.