EPIRBs, officially known as Emergency Position Indicating Radiobeacons, are emergency beacons used in maritime distress. They are designed to save your life if you get into trouble by alerting rescue authorities and indicating your location anywhere in the world. EPIRBs are classified into two categories: Category I or Category II.
Category I EPIRBs float-free and are automatically activated by immersion in water, and they are detectable by satellite anywhere in the world.
Further reading about EPIRBS and Personal Locator Beacons (PLBs):
How to Register an EPIRB or PLB
Marine Electronics Review - SPOT Personal Locator Beacon
Marine Electronics Review - ACR Electronics AquaFix 406 I/O Personal Locator Beacon
Marine Electronics Review - ACR Electronics ResQFix 406 GPS Personal Locator Beacon
Marine Electronics Review - ACR Electronics GlobalFix iPRO EPIRB
