What This Product Is Used For
The Ocean Signal MOB2 is a compact AIS man overboard beacon designed to transmit your precise GPS position directly to nearby vessels, offering a far more accurate recovery solution than relying on visual signals alone.
Unlike a basic strobe or whistle, the MOB2 broadcasts your position using AIS and includes an integrated DSC transceiver. When activated, it sends an alert that can be received by compatible marine plotters and DSC equipped radios, helping crew members quickly identify and navigate to your exact location.
With GNSS positioning via GPS and Galileo, fast and accurate positioning is central to its function. Integrated IR and white strobe lights add visual confirmation during night time recovery, while automatic activation ensures the device begins transmitting when deployed from a life jacket.
Who This Product Is Best Suited To
This beacon is best suited to offshore sailors, racing crews, yacht owners and professional maritime operators who require rapid vessel based recovery in man overboard situations.
It is particularly valuable for those operating in busy sea lanes or group sailing environments where AIS equipped vessels are present and immediate response is critical.
It also suits users who want a compact, life jacket integrated solution that remains unobtrusive until needed.
Pros and Cons
Pros
AIS transmission provides precise digital positioning to nearby vessels
Integrated DSC transceiver enhances alert capability
Automatic activation removes delay during emergencies
Compact size improves comfort and life jacket integration
Cons
Requires nearby vessels to have AIS or DSC capable equipment for full functionality
Primarily designed for maritime overboard recovery rather than land based emergencies
Real World Performance and Day to Day Use
Mounted on a life jacket, the MOB2 remains discreet and lightweight. Its reduced size compared to many alternatives improves comfort and encourages proper integration with inflatable life jackets.
When activated, the unit transmits AIS data along with a DSC alert, allowing compatible navigation systems to display the overboard position clearly. The LEDs confirm DSC distress signal receipt, providing reassurance that the alert has been sent.
GNSS positioning via GPS and Galileo supports fast and accurate location data. The white and IR strobe lights enhance visibility at night and assist with close range identification during recovery.
Why We Like This Product
From the YPC Team perspective, the combination of AIS, integrated DSC and compact form factor makes this a serious safety upgrade for offshore crews.
A common mistake is relying only on visual spotting and basic alarms during man overboard drills. Digital positioning transmitted directly to navigation systems significantly improves recovery accuracy and reduces search time when seconds matter.
Comparisons With Similar Systems
Compared with standard water activated strobe lights
Strobe lights improve visibility but do not transmit digital position data. The MOB2 provides GPS positioning over AIS and DSC, which is far more precise for vessel based recovery.
Compared with satellite personal locator beacons
Satellite PLBs alert global rescue services. The MOB2 is optimised for rapid recovery by nearby vessels rather than long distance satellite coordination. Choose a satellite PLB for remote ocean crossings without nearby traffic. Choose MOB2 for yacht and fleet based recovery.
Compared with AIS only MOB devices
AIS only devices transmit positioning but may lack integrated DSC capability. The MOB2 integrates both AIS and DSC, enhancing alerting and confirmation.
Alternatives Worth Considering
If you regularly sail in extremely remote waters without nearby AIS equipped vessels, a satellite personal locator beacon may provide broader emergency coverage. If your priority is purely visual night signalling, a high intensity water activated strobe light may be a simpler option.
Tips for Getting the Best Performance
Ensure proper integration with a compatible life jacket according to manufacturer guidance.
Confirm your vessel’s AIS and DSC systems are correctly configured before departure.
Include man overboard drills that incorporate AIS and DSC alarm response.
Check battery status and service intervals in line with official recommendations.
Position the device so it deploys correctly if the life jacket inflates.
Full Technical Specification
Product type AIS man overboard personal beacon
AIS Automatic Identification System transmission
Compliance Class M compliant under ECC DEC 22 02
DSC Integrated transmit and receive DSC transceiver
Positioning GNSS via GPS and Galileo
Visual signals White strobe light and IR strobe light
Activation Automatic activation
Indicators LED confirmation of DSC distress signal receipt
Design Compact waterproof maritime emergency beacon
Integration Designed for simple life jacket integration
Box contents
Ocean Signal MOB2 AIS personal man overboard beacon
Buyer’s Guide
Buy this if you operate offshore with AIS and DSC equipped vessels and want precise GPS based man overboard recovery support in a compact form.
Do not buy this if you need a global satellite distress alert device or if nearby vessels are unlikely to have AIS or DSC capability.
Frequently Asked Questions
What does AIS mean in the Ocean Signal MOB2?
AIS stands for Automatic Identification System. It transmits your position to nearby AIS equipped vessels.
Does the MOB2 include GPS?
Yes. It uses GNSS positioning via GPS and Galileo for fast and accurate location data.
What is DSC and why does it matter?
DSC stands for Digital Selective Calling. The integrated transceiver sends a distress alert to compatible DSC radios, enhancing the recovery process.
Does it activate automatically?
Yes. It is designed for automatic activation when deployed from a life jacket.
Will I know if the distress signal has been received?
LED indicators confirm DSC distress signal receipt.
Is it suitable for night time recovery?
Yes. It includes both white and IR strobe lights to improve visibility.
How small is it compared to other devices?
It is typically around fifty percent smaller than many comparable devices, improving comfort and integration.
Does it work without nearby boats?
It relies on AIS and DSC equipped vessels within range for local recovery.
Is it waterproof?
Yes. It is designed as a waterproof maritime emergency beacon.
Can it be fitted to most life jackets?
It is designed for simple integration with compatible life jackets.
Looking for more options?
Browse our full range of Personal Location Beacons for other great choices to suit your space, goals, and budget.
