The four core pieces of man overboard gear are a horseshoe buoy (140-142N buoyancy, thrown the instant someone goes over), a danbuoy that raises a flag and light above wave height to keep them visible, a wireless MOB alert module that warns the helm immediately, and a recovery sling that gets the person back aboard. Most mid-size cruisers carry a combination of all four rather than relying on just one.
Man overboard gear at a glance
Real, currently active gear from MAURIPRO's Man Overboard & Rescue Gear collection - verified live on mauripro.com.
| Gear type | Example (SKU) | What it does | Price |
|---|---|---|---|
| Horseshoe buoy | LALIZAS Basic I 140N (LAL-20540) | Thrown immediately - buoyant, open collar the person can swim into or grab | $51.95 |
| Horseshoe buoy (quick-release) | LALIZAS Quick RD 142N (LAL-70165) | Quick-release mounting bracket, 142N rating, waterproof polyester/PVC shell | $47.99 |
| Danbuoy + horseshoe combo | LALIZAS Lifelink MOB Danbuoy & Horseshoe (LAL-73669) | Auto-deploying horseshoe plus an 8 ft (2.44 m) ballasted pole and flag for visibility above waves | $320.00 |
| Wireless MOB alert module | Garmin OnBoard Wireless MOB/Engine Cutoff System (GAR-010-02908-00) | Monitors up to 10 wearable tags; alerts the helm and cuts the engine automatically if someone goes over | $499.99 |
| Recovery sling | LALIZAS Lifelink ISAF Rescue Sling (LAL-73670) | 36 m (120 ft) floating line and buoyant sling to pull the person alongside and hoist them aboard | $98.95 |
On a mid-size 30-45 ft cruiser, the crew that goes over the side is usually the same crew you need back on deck to sail the boat - which is why man overboard preparation is about more than one product. A horseshoe buoy buys the person flotation the moment they're in the water. A danbuoy keeps them visible to a helm that's already turning the boat around. A wireless alert module closes the gap for solo and short-handed sailors, where nobody may notice a fall for several minutes. And a recovery sling solves the part everyone forgets to plan for: actually getting a person, often exhausted and in cold water, back over the rail.
This guide walks through what each piece of gear does, what to look for, and how they work together - so you can put together a setup that matches how you actually sail, not just a single item off a shelf.
What does a horseshoe buoy do, and why does the rating matter?
A horseshoe buoy is thrown or handed to a person in the water the instant they go over the side. Unlike a rigid ring buoy, it's open at one end with a soft, foam-filled cover, so a tired or injured person can slip an arm or their body through it rather than having to grip a hard ring. MAURIPRO's LALIZAS Basic I carries a 140N buoyancy rating and weighs 204 g (7.2 oz); the LALIZAS Quick RD version is rated 142N and mounts in a quick-release bracket so it can be freed with one motion instead of unclipping a strap. Both are made from waterproof, UV-resistant material and available in white, yellow, or orange for visibility.
A horseshoe buoy doesn't retrieve anyone - it only floats. Its job is to give the person something buoyant to hold onto while the boat maneuvers back, which is why it's the minimum piece of gear every boat should have mounted somewhere reachable from the cockpit.
How does a danbuoy keep a person visible once you've turned the boat around?
Once a horseshoe buoy hits the water, it sits at wave height - easy to lose sight of in anything but flat calm. A danbuoy solves that by adding a tall pole with a flag (and often a light) that stays upright well above the waves, so the helm can keep visual contact while circling back. LALIZAS packages this as a combined Lifelink MOB Danbuoy & Horseshoe unit: an auto-deploying horseshoe lifebuoy paired with an 8 ft (2.44 m) danbuoy pole, with an integrated ballast system to keep the pole upright and stable in the water. It's built for quick deployment straight from the vessel's railings.
Combining the horseshoe and danbuoy in one canister, as LALIZAS does, means one deployment action puts both flotation and a visual marker in the water at once - useful on a shorthanded boat where the crew handling the emergency doesn't have time to deploy two separate pieces of gear.
How does a wireless MOB alert module work, and who actually needs one?
Everything above assumes someone on deck sees or hears the person go over. On a solo or short-handed passage, especially at night, that's not a safe assumption. A wireless MOB alert module closes that gap. The Garmin OnBoard Wireless MOB/Engine Cutoff System monitors wearable tags worn by the crew (up to 10 tags per system) and, if a tag goes underwater or out of range, automatically cuts the engine and alerts the helm - even if nobody was watching. ACR's OLAS Exposure Series works on the same principle: a central hub (the OLAS Core, 12V DC powered) continuously tracks wearable transmitters and triggers a high-decibel alarm the moment one is lost.
These modules detect and alert - they don't provide flotation and they don't retrieve anyone. On a fully crewed boat with someone always on watch, a module is a valuable backup; on a solo or short-handed passage, it's the difference between an immediate response and a boat that sails on for several minutes before anyone notices.
What is a recovery sling, and why do you need one even if you already have a horseshoe buoy?
A horseshoe buoy and a danbuoy solve flotation and visibility - neither one gets a person back on deck. That's the job of a recovery sling. The LALIZAS Lifelink ISAF Rescue Sling mounts permanently on the pushpit in a soft PVC stowage bag and deploys with 36 m (120 ft) of floating line. Per LALIZAS' published specs, the line has a breaking strain of over 200 kg and the flotation belt itself has a breaking strain of over 700 kg - it's built to be pulled on under real load while towing a person alongside the hull.
In practice, the sling is what turns "we found them" into "they're back on the boat" - it lets the crew tow the person to a boarding point (a swim ladder, sugar-scoop stern, or dedicated MOB recovery system) instead of trying to haul them over the rail by hand, which is exhausting and often impossible with an exhausted or injured person in the water.
Which should I choose?
For most mid-size cruisers, this isn't a choice between one item - it's a question of how much of the chain you build out:
- Minimum, every boat: at least one horseshoe buoy mounted within reach of the cockpit.
- Coastal cruising, any crew size: add a danbuoy (or a combined danbuoy/horseshoe unit) so the helm can keep visual contact while maneuvering back, plus a recovery sling to actually get the person aboard.
- Solo or short-handed offshore passages: add a wireless MOB alert module on top of the above, since there may be no one watching when someone goes over.
None of these substitutes for the others - a module alerts, a horseshoe floats, a danbuoy marks the position, and a sling recovers. A well-prepared boat carries all four.
Frequently asked questions
What's the difference between a horseshoe buoy and a ring buoy?
A ring buoy is a rigid, closed ring - LALIZAS' SOLAS/MED ring buoys, for example, use a hard, cross-linked polyethylene shell. A horseshoe buoy is open at one end with a soft, foam-filled fabric cover, which makes it easier for a tired or injured person to slip into rather than having to grip a rigid ring.
How much buoyancy do I need in a horseshoe buoy?
MAURIPRO's active horseshoe options are rated 140N (LALIZAS Basic I) and 142N (LALIZAS Quick RD) - check the specific rating on the product you're buying rather than assuming all horseshoe buoys carry the same figure.
Do I need both a danbuoy and a horseshoe buoy?
You need the flotation of a horseshoe and the visibility of a danbuoy - LALIZAS packages both together in its Lifelink MOB Danbuoy & Horseshoe unit, so many boats carry that combination as a single piece of gear rather than two separate purchases.
Can a wireless MOB alert module replace a horseshoe buoy?
No. A module like the Garmin OnBoard system or ACR's OLAS Core only detects that someone has gone overboard and alerts the crew - it provides no flotation and doesn't help bring the person back aboard, so it's used alongside buoyant gear and a recovery sling, not instead of them.
How long is the line on a recovery sling?
The LALIZAS Lifelink ISAF Rescue Sling ships with 36 m (120 ft) of floating line, permanently stowed in a PVC bag mounted on the pushpit for quick deployment.
Shop man overboard gear
See the full range of horseshoe buoys, danbuoys, wireless MOB alert modules, and recovery slings, verified active on mauripro.com:
- LALIZAS Basic I Horseshoe Lifebuoy, 140N
- LALIZAS Lifelink MOB Danbuoy & Horseshoe
- Garmin OnBoard Wireless MOB/Engine Cutoff System
- LALIZAS Lifelink ISAF Rescue Sling
Shop all Man Overboard & Rescue Gear →