Skip to main content
TideLab

Best EPIRB & PLB for Sailing 2026

Updated April 2026 · Annual refresh

Distress beacons are the single most important piece of safety kit on an offshore boat. This guide explains EPIRB vs PLB, then recommends five real picks — three EPIRBs (boat-mounted) and two PLBs (personal carry). Plus what Cat I / Cat II means, why registration matters, and the difference between battery dates and purchase dates.

The top picks

  • Best EPIRB overall (~£420): Ocean Signal RescueME EPIRB1 — UK cruising default, 7-year battery, GPS.
  • Best premium EPIRB (~£600): ACR GlobalFix V5 — 10-year battery, IR strobe, OLED status display.
  • Budget EPIRB (~£330): Ocean Signal SafeSea E101G — manual-only, 5-year battery.
  • Best PLB (~£280): Ocean Signal RescueME PLB1 — smallest on the market, lifejacket-pocket sized.
  • PLB with display (~£330): ACR ResQLink View — OLED confirms GPS lock and position.
  • Most offshore boats want both— a Cat I EPIRB on deck and a PLB on each crew member's lifejacket.

EPIRB vs PLB — which one?

Both transmit on 406 MHz to the Cospas-Sarsat satellite network. The difference is who they're registered to, how they activate, and where they live on the boat.

EPIRB

  • Registered to the boat (MMSI / hull ID)
  • Lives in a bracket on deck or in the wheelhouse
  • Cat I = auto-deploys when submerged; Cat II = manual
  • Larger battery, more powerful signal, longer transmission time
  • Lasts ~48 hours transmitting once activated
  • ~£330–£600

PLB

  • Registered to the person
  • Worn on the body — lifejacket, harness, pocket
  • Manual activation only
  • Smaller battery, ~24 hours of transmission
  • Use case: man overboard, dinghy capsize
  • ~£280–£330

Decision rule:If you sail offshore, you want both. The EPIRB stays with the boat (so if the boat sinks fast or burns, the auto-deploy version transmits the boat's position without human action). The PLB stays with you (so if you go over the side and the boat sails on, you have a beacon that's actually with you). Picking one over the other is choosing which failure mode you ignore.

EPIRBs — boat-mounted beacons

Ocean Signal RescueME EPIRB1

Best EPIRB overall
~£420· 7 years battery· 422 g· GPS· Auto-activate option

The UK cruising default for the last decade. Manual + water-activated, 7-year battery, integrated GPS, 121.5 MHz homing for SAR helicopter approach. Compact for an EPIRB.

Why pick it

If you want one EPIRB on the boat and never think about it again, this is the pick. Reliable, supported, well-priced for the spec. The integrated bracket lets you mount it manual (Cat II) or hydrostatic-release (Cat I).

Watch out

Battery is 7 years from manufacture, not 7 years from purchase — check the date on the unit before buying. Replacement at end-of-life is dealer-only and costs ~£170.

Check price on Amazon →

ACR GlobalFix V5

Best premium
~£600· 10 years battery· 493 g· GPS· Auto-activate option

ACR's flagship 2024 release — 10-year battery (industry-leading), multi-constellation GNSS (GPS + Galileo), integrated strobe, infrared strobe for SAR with night vision, and an OLED status display.

Why pick it

Offshore or world-cruising sailors who don't want to think about end-of-life replacement for a decade. The IR strobe is genuinely useful — SAR helicopters operate with night-vision goggles, and a regular strobe blooms them out.

Watch out

Significantly more expensive than the Ocean Signal. The 10-year battery edge is real, but if you replace the EPIRB anyway because the boat changes hands or you cruise away from the original purchase region, you may never use the extra years.

Check price on Amazon →

Ocean Signal SafeSea E101G

Budget EPIRB
~£330· 5 years battery· 395 g· GPS· Manual only

The cheapest mainstream 406 MHz EPIRB with built-in GPS. Manual-activation only — no hydrostatic release option. Shorter 5-year battery.

Why pick it

Coastal cruisers, club racers, and second-EPIRB use where the boat already has a Cat I auto-release unit and this is the manual backup in the grab bag. At ~£330 it's a real value pick.

Watch out

Manual-only means it won't activate if the boat goes down before you can grab it. Not suitable as the only EPIRB on an offshore boat.

Check price on Amazon →

PLBs — personal-carry beacons

Ocean Signal RescueME PLB1

Best PLB overall
~£280· 7 years battery· 116 g· GPS

The smallest 406 MHz PLB on the market. Fits in a lifejacket pocket. Manual-activation only. 7-year battery, integrated GPS, 121.5 MHz homing. The cult favourite of solo and shorthanded sailors.

Why pick it

Personal-carry beacon — clipped to your lifejacket or in a pocket of your oilies. The MOB scenario where the boat sails on without you is exactly what this device exists for. EPIRBs stay with the boat; PLBs stay with the person.

Watch out

Manual activation requires conscious effort — if you're unconscious in the water, it won't help. Also: PLBs use the person's name on the registration, not the boat's. Make sure yours is registered before you carry it.

Check price on Amazon →

ACR ResQLink View

PLB with display
~£330· 6 years battery· 148 g· GPS

A PLB with an OLED display that confirms GPS acquisition and shows your own position — reassuring when you're drifting in the dark waiting for SAR. Multi-constellation GNSS.

Why pick it

If you want visual confirmation that your beacon has acquired position and is transmitting, rather than just relying on a strobe light. Useful for solo offshore sailors and anyone who has been told too often that "it should be working."

Watch out

Slightly larger and heavier than the Ocean Signal PLB1. Battery is 6 years, not 7. Worth the trade only if you specifically value the display.

Check price on Amazon →

All five at a glance

ModelTypePriceGPSAutoBatteryWeight
Ocean Signal RescueME EPIRB1EPIRB~£420✓✓7 years422 g
ACR GlobalFix V5EPIRB~£600✓✓10 years493 g
Ocean Signal SafeSea E101GEPIRB~£330✓—5 years395 g
Ocean Signal RescueME PLB1PLB~£280✓—7 years116 g
ACR ResQLink ViewPLB~£330✓—6 years148 g

What to actually look for

Cat I vs Cat II — auto-deploy or manual

Cat I EPIRBs sit in a hydrostatic-release bracket. When the bracket is submerged below ~4 metres, it releases the EPIRB, which floats up and activates automatically. Cat II is the same EPIRB in a manual bracket — the crew has to grab and activate it. Cat I is the right choice for any boat that could sink quickly (most modern sailing yachts), Cat II for boats where the EPIRB is always reachable and a manual decision is acceptable.

Built-in GPS — non-negotiable in 2026

Without GPS, the Cospas-Sarsat network locates a 406 MHz beacon by Doppler shift to within ~5 km — adequate but slow. With GPS, the position is transmitted directly and SAR has you to within metres in minutes. Every model in this guide has built-in GPS. Do not buy a non-GPS beacon to save £50 — that £50 is the difference between being found in 30 minutes and being found in 6 hours.

Battery life — and the date trap

All 406 MHz beacons have a fixed-life battery (5–10 years). The life is from the manufacture date stamped on the unit, not the day you buy it. A beacon bought from a discount retailer can already be 18 months into its 7-year life. Check the date label before buying, especially on heavily-discounted units. End-of-life battery replacement is dealer-only and costs ~30–50% of the price of a new beacon.

Registration — the step everyone forgets

A 406 MHz beacon must be registered before it works properly. In the UK that's the EPIRB Registration database run by the MCA (free, mandatory, 10 minutes online). An unregistered beacon still transmits, but SAR has no name, no boat, no contact details to work with — they don't know if it's a real distress or a false alarm, which delays response. Re-register when the boat changes ownership or your contact details change.

121.5 MHz homing — almost universal, still important

The 406 MHz signal gets SAR to within metres via satellite. The 121.5 MHz signal is what their on-scene direction-finder uses for the last 5 km of the approach. All modern 406 MHz beacons transmit both. If you find a vintage beacon for sale that's 406 MHz only with no 121.5 MHz homing — don't.

Multi-constellation GNSS (Galileo, GLONASS) — useful, not critical

Newer beacons (ACR GlobalFix V5, ACR ResQLink View) acquire from multiple satellite constellations, which means faster GPS lock, especially in challenging conditions (heavy weather, dense foliage for inland use). Worth having; not worth replacing an existing GPS-only beacon for.

FAQ

EPIRB or PLB if I can only afford one?

For coastal day-sailing, a PLB on each crew member's lifejacket is the higher-value pick — MOB is the more common scenario than the boat sinking faster than you can grab the EPIRB. For offshore, an EPIRB is the priority — if the boat goes down in big seas, the EPIRB transmits longer and from a higher antenna position than a PLB on a casualty in the water. Most cruisers eventually buy both.

What about AIS MOB devices?

AIS MOB beacons (Ocean Signal MOB1, ACR AISLink MOB) are a complementary technology, not a replacement. They alert your own boat's AIS — within 5 NM, range-limited to VHF line of sight — but do not call SAR. Use them alongside a PLB, not instead of one. The MOB1 fits neatly inside the same lifejacket that holds a PLB.

Do I need to register every time I cross a border?

No — register once with the country of the beacon's flag (UK MCA for UK-registered boats, equivalent for others) and the registration is recognised globally through Cospas-Sarsat. The country whose SAR responds is determined by where you set off the beacon, not where it's registered.

What happens if I set it off by accident?

Call HM Coastguard immediately (UK) or the equivalent national SAR authority — they will cancel the alert if they have time. False alerts are taken seriously but are not punished if you self-report quickly. Do not just turn the beacon off and hope; SAR will already have begun mobilising and may task assets if they cannot reach you.

Do EPIRBs need self-test?

Yes — every model in this guide has a self-test button that confirms battery, GPS, and 406 MHz transmitter health without sending a distress signal. Run it monthly. Most manuals recommend a quarterly extended self-test that briefly transmits on a non-distress frequency to confirm RF output.

Affiliate disclosure:The Amazon links on this page are affiliate links — Elio may earn a small commission at no extra cost to you. We have no commercial relationship with Ocean Signal or ACR. The picks above are the same ones we'd recommend to a friend. We re-test and refresh this guide each year.

Read next

We use a small set of cookies to keep you signed in and remember your preferences. We don't use third-party analytics by default — when we do, you'll be asked again. Cookie policy.