Whether you're heading offshore for a fishing trip, exploring remote hiking trails, or chasing adventure beyond mobile phone reception, having a reliable emergency beacon can be a real lifesaver. But when it comes to choosing between a Personal Locator Beacon (PLB) and an Emergency Position Indicating Radio Beacon (EPIRB), things can get a bit confusing.
Both devices are designed to send a satellite distress signal in an emergency or life-threatening situation, helping rescuers locate you when things go pear shaped.
The big difference is that PLBs and EPIRBs are designed for different types of adventures and situations.
So, if you're trying to work out the difference between a PLB vs EPIRB, you've come to the right place. Here we'll break down how each beacon works, the key differences between them – and which one deserves a spot in your adventure kit.
Quick Links
What Is a PLB?
A Personal Locator Beacon (PLB) is a compact emergency locator beacon designed to be carried by an individual.
If you're in serious trouble and need immediate assistance, activating a PLB sends a distress signal via satellite to emergency services. This type of GPS beacon helps rescue authorities pinpoint your location and quickly coordinate a response.
PLBs are a popular piece of outdoor safety equipment for people who regularly venture beyond mobile coverage, including:
Hikers and bushwalkers
Kayakers and paddlers
Four-wheel drivers
Hunters and remote campers
Solo fishos
Boaties wanting an extra layer of personal safety
Small enough to fit in a pocket, tackle bag or life jacket, a PLB stays with you wherever you go, making it one of the most versatile pieces of safety gear for outdoor adventures.
Key Features of a PLB
Compact and lightweight
Designed for one person
GPS-enabled on most modern models
Waterproof and rugged
No subscription fees
Registered with the Australian Maritime Safety Authority (AMSA)
Ideal for remote area travel, hiking, camping, kayaking and fishing safety
Most PLBs have a battery life of 7 years from the date of manufacture or installation
Once the battery expires, it must be replaced by an authorised service centre or the unit replaced entirely, depending on the model
Beacon registration with AMSA is free, but owners should ensure their contact details remain current
What Is an EPIRB?
An Emergency Position Indicating Radio Beacon (EPIRB) is an emergency beacon specifically designed for use on boats.
Like a PLB, an EPIRB transmits a distress signal through international satellite search and rescue networks. The key difference is that this marine emergency beacon is designed to help rescuers locate a vessel and everyone onboard.
Many EPIRBs can automatically activate if a boat sinks, making them an essential piece of boat safety equipment and a critical part of any offshore safety plan for those venturing beyond the coastline.
EPIRBs are commonly carried on:
Offshore fishing boats
Cruisers and yachts
Trailer boats venturing offshore
Commercial vessels
In Australia, an EPIRB is also required to be carried on any vessels operating offshore or beyond specified distances from shore, helping ensure boaters can alert rescue authorities in an emergency. An important distinction for Aussie boaties is that an EPIRB is registered to the vessel, while a PLB is registered to an individual person. If you're heading into waters where carrying an EPIRB is a legal requirement, a PLB does not replace that requirement. Even if every person onboard is carrying a PLB, you'll still need a registered EPIRB on the boat to remain compliant with marine safety regulations. If you're checked by maritime safety authorities or water police in areas where an EPIRB is mandatory and only have a PLB onboard, you may not meet the legal safety requirements.
Key Features of an EPIRB
Designed for marine emergencies
Protects everyone onboard
Larger and easier to locate in the water
Generally longer battery life than PLBs
Some models float and self-activate
Critical boat safety equipment for offshore boating and marine emergencies
Mandatory for many offshore boating situations
Most EPIRBs also have a battery replacement interval of 5 to 10 years, with 10 years being common for newer models
Some EPIRBs require periodic servicing depending on manufacturer recommendations
Registration details should be kept up to date whenever ownership or contact information changes
Should Boaties Carry Both?
For serious offshore adventures, carrying both a PLB and EPIRB can be a smart move. Here's why.
Imagine you're separated from your vessel after falling overboard. An EPIRB attached to the boat won't help rescuers locate you if you're drifting away. That's where a PLB worn on your life jacket becomes invaluable.
Carrying both devices provides an extra layer of offshore boating safety, ensuring rescuers can locate both the vessel and individual crew members during an emergency.
Many experienced offshore anglers and boaties carry:
An EPIRB for the vessel
A PLB attached to their PFD or clothing
It's a simple way to create an additional safety net when conditions turn ugly.
When Should You Choose a PLB?
A personal locator beacon may be the right choice if you:
Regularly hike or camp in remote areas
Go four-wheel driving off the beaten track
Fish from kayaks or small craft
Want a beacon that always stays with you
Need an emergency device for multiple outdoor activities
A PLB is one of the most versatile forms of emergency locator beacon technology available and is ideal for anyone travelling beyond mobile coverage.
Think of a PLB as your personal backup plan, wherever adventure takes you.
When Should You Choose an EPIRB?
An EPIRB for boats is generally the better option if you:
Own or regularly operate a boat offshore
Need to meet marine safety requirements
Want protection for everyone onboard
Spend long periods on open water
Fish, cruise or explore well beyond mobile coverage
An EPIRB is designed to improve your chances of a successful rescue during a marine emergency and remains a crucial piece of marine safety equipment for Australian boaties.
For offshore boating, an EPIRB should be considered essential safety gear right alongside life jackets and marine radios.
Don't Forget to Register Your Beacon
Whether you choose a PLB or an EPIRB, registration is crucial.
Registering your emergency beacon with the Australian Maritime Safety Authority (AMSA) helps rescue authorities quickly identify who owns the beacon and who may need assistance. It can significantly improve response times during an emergency.
Registering your beacon is a key part of responsible boating safety in Australia and outdoor adventure preparation.
It's free, easy to do, and one of the most important steps after purchase.
The Bottom Line
When it comes to PLB vs EPIRB, choosing the right emergency locator beacon depends on where your adventures take you and the type of activities you enjoy.
If you need a beacon that stays with you wherever you roam, a PLB is the go. If you're heading offshore and need protection for your vessel and crew, an EPIRB is the clear choice.
And if you're serious about offshore boating safety? Carrying both may be the smartest move of all. After all, the best fishing stories are the ones that end with everyone getting home safely.
Ready to gear up for your next trip? Check out BCF's range of PLBs, EPIRBs, emergency beacons, boat safety equipment and marine safety equipment online or in-store, and head out with confidence.
About the author
BCFing Experts
The BCFing Experts have done more than their fair share of boating, camping, fishing, hiking, four-wheel driving and much much more! Whether you're tackling tough tracks in Tassie or chasing big barra up North, the BCFing Experts have the know-how to make your next outdoor adventure a pearler
Read More