What is a man overboard alarm?
A man overboard alarm is a wearable maritime beacon that activates when a person falls into the water. Once triggered, it transmits an emergency alert and location data to nearby AIS-equipped vessels. This allows crews to respond quickly, even in poor visibility or rough sea conditions.
How does a man overboard alarm work?
- The device is worn on a life jacket or clipped to clothing.
- When submerged, the beacon automatically activates.
- An AIS distress signal is transmitted with GPS location data.
- Nearby vessels receive an immediate man overboard alert.
- Rescue crews can track the person’s position in real time.
Who are man overboard alarm systems for?
- Commercial and recreational boat operators
- Sailing crews and racing teams
- Offshore workers and marine contractors
- Solo sailors and long-distance cruisers
- Anyone operating vessels in open or low-visibility waters
Types of man overboard devices
- AIS man overboard beacon – Sends an AIS emergency signal directly to nearby vessels.
- Automatic MOB alarm – Activates immediately upon water immersion.
- Life jacket integrated beacon – Designed to remain attached and functional during a fall.
Key features and benefits
| Feature |
Description |
| AIS transmission |
Broadcasts distress alerts to all AIS-enabled vessels nearby. |
| Automatic activation |
Triggers when submerged, no manual action required. |
| GPS positioning |
Provides accurate real-time location data. |
| Compact design |
Fits securely onto life jackets without restricting movement. |
Why choose Safe-Life for man overboard alarms?
- Australian supplier of maritime safety equipment
- Products designed to meet marine safety requirements
- Clear guidance on correct device selection and use
- Compatible with standard AIS marine systems
- Fast local support and shipping within Australia
Related emergency beacon categories
