Emergency Locator Beacon

Emergency locator beacons are automated signal devices used by humans in event of an emergency in space. They were used by both Cortana and Oliver Birch after they became stranded in deep space.Halo 3, campaign level, HaloHalo: First Strike (2010), Adjunct
==List of appearances==
*Halo 3 
*Halo: First Strike (2010)
==Sources==
Category:UNSC