For use on land
Personal Locator Beacons (PLBs) are designed to be used on land. They are smaller and easier to transport than other beacons, and are designed to stay with individuals rather than vehicles.
Emergency Position Indicating Radio Beacons (EPIRBs) can also be used on land, but are more difficult to transport because they are larger and heavier to carry.
For use on water
In most states, Emergency Position Indicating Radio Beacons (EPIRBs) are required for boats that travel at least 2 nautical miles from the coast. If you're not travelling that far, you can use a Personal Locator Beacon (PLB) instead.
For use on an aircraft
Emergency Locator Transmitters (ELTs) are designed for aircraft.
In some cases, Emergency Position Indicating Radio Beacons (EPIRBs) or Personal Locator Beacons (PLBs) may be carried in place of an ELT. Refer to CASA to read the regulations.
For faster and more accurate alerts, be sure to select a beacon that has GPS.
Why is GPS best?