Nautilus Marine Rescue GPS is incredibly simple to use, like flipping a switch. Undo the latch, open it, turn it on, remove the antenna retainer, and press the red button. Thats it!…

Your GPS position will be accurate to 1.5 metres, and a man overboard distress message will be broadcast to all AIS-equipped ships up to 34 miles away, as well as a special DSC message to the marine radio on the dive boat you have been using.