The Emergency Personal Locator Beacon (EPLB) from Israel’s Elbit has begun operations for the UK’s Royal Air Force. The EPLB is attached to the pilot’s life jacket and emits two types of alerts if the pilot ejects or crashes. The all-weather device operates even if the pilot is unconscious.
https://ukdefencejournal.org.uk/emergency-locator-beacon-enters-service-with-the-royal-air-force/