Personal Locator Beacons (PLBs) for offshore workers were reintroduced on Monday.
Workers in Aberdeen will be the first to receive the equipment, followed by the southern North Sea area and Scatsa in Shetland.
The devices were withdrawn after they were believed to have interfered with rescue equipment when a Super Puma ditched in the North Sea last February.
Sixteen passengers and two crewmembers were rescued after a Super Puma helicopter ditched near the installation. All survived and evacuated into two life rafts.
The wristwatch-style locator beacons worn by all onboard were believed to have interfered with other emergency signals.
But after all 16 men onboard North Sea Flight 85N died when the helicopter ditched into the sea on April 1 calls have been made for the beacons to be brought back.
Robert Paterson of Oil & Gas UK said: “If someone does end up in the water, we want to get them out of the water as quickly as possible and we want to know where they are.
“The helicopter life rafts have beacons in them as well but if someone is unable to get into a life raft for any reason, we also want to be able to find those people.”
Jake Molloy of the OILC Union said: “There will be thousands of workers who will now carry these for the first time so it’s more than just a reintroduction.
“I think it gives the guys a bit of confidence – it’s a reassurance aspect, there’ nobody wants to use the things - that’s for sure.”
Safety experts say the new Sea Marshall beacon has been tested thoroughly.
Users will also be shown a new instructional DVD to explain how they work.
