An Automatic Identification System, or AIS, is an automatic tracking system originally designed for vessels to aid in collision avoidance. Now the same technology has been adapted to be carried by an individual, to help in ‘man over board‘ (MOB) situations. Because of this, you might often hear them referred to as AIS Man Overboard (MOB) devices. 

An AIS beacon, once activated, transmits an MOB message to AIS equipped vessels within range (approx. 4-5 miles). A built in GPS receiver ensures that your exact location is sent. This is then displayed on a chart plotter (or other screens that have an AIS interface) as an MOB. If you require more detailed information, please refer to either the technical specifications listed or any appropriate documents, which you can read or download respectively, from each product’s page, or feel free to call us for assistance.