Ocean Signal rescueME MOB1

Ocean Signal rescueME MOB1


Part Number: 912S-01517

The world's smallest MOB (Man Overboard) device combining AIS & DSC. The Ocean Signal rescueME MOB1 sends your location to AIS equipped vessels upon inflation of lifejacket.

Ocean Signal rescueME MOB1

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Ocean Signal MOB1 sends your location to any AIS equipped vessel within 5 miles notifying them that help is required. Install the rescueME MOB1 in your lifejacket and upon inflation the device will automatically activate - the first alert will be sent within 15 seconds of activation and will continue to transmit your location for up to 24 hours.

The world's smallest MOB (Man Overboard) device combining AIS and DSC* technology.

This device should only be used in situations of grave and imminent danger to life. False alerts endanger lives and cause expensive disruption to Search & Rescue services. Deliberate misuse of the device could result in a penalty.


Ocean Signal MOB1 Key Features:

Easily Integrated on Lifejacket

To take full advantage of the automatic activation, the MOB1 should be fully attached to the life-jacket.

Follow instructions for attaching the MOB1 to your lifejacket in the Ocean Signal rescueME MOB1 User Manual



The Ocean Signal MOB1 can be activated automatically, upon inflation of a lifejacket, or manually by releassing the activation slide. This dual-activation options offers peace of mind that if the lifejacket fails to fully inflate then the MOB1 can still be easily activated manually. 


Integrated DSC transmitter (digital selective calling)*

If your vessel has a DSC enabled VHF radiotelephone, it is strongly recommended to programme your vessels MMSI number into your MOB1. This will allow the MOB1 to send the details of the man over board incident direct to the radio and sound the alarm.


AIS (Automatic Identification System)

This MOB1 AIS transmitter is only intended for short range signalling to an AIS receiver installed onboard your own vessel. It will not directly alert the emergency services or any other vessels.


Strobe Light

The Ocean Signal MOB1 has a high-intensity strobe light and LED indicator. Upon activation, the strobe light will start flashing and the LED indicator flash eight times during AIS transmission and one long flash during DSC transmission. The colour of the flash will be Red during position acquisition and green when the GPS position is being received.


Battery Life

The Ocean Signal MOB1 has a storage battery life of up to 7 years! Upon activation, the MOB1 battery life will operate for a minimum of 24 hours.


Subscription Free

Unlike most satellite enabled notification devices, the Ocean Signal MOB1 requires no monthly or annual subscription, making it a cost effective option for long term use. Whether you’re a commercial vessel, a fishing trawler or leisure craft, an AIS MOB device should be considered essential safety equipment for every member of the crew working on deck.



Most modern AIS plotters and DSC VHF comply with the standards required to receive MOB transmissions. It is however, especially if you are using older equipment, recommended that you check compatibility with the equipment manufacturer.

*The DSC functionality of the MOB1 is limited by regulations in each country.  The list below indicates which functions you may expect.

  • AIS only: Canada, France, Denmark, Latvia
  • AIS + DSC Individual Distress Relay call plus group call sent after 30minutes: USA
  • AIS + DSC Individual Distress Relay call only: Germany, Netherlands, United Kingdom
  • AIS + DSC Individual Distress Relay,All Ships Distress Alert (manual initiation): All other European countries
  • AIS + DSC Individual Distress Relay, All Ships Distress Alert, sent once on MOB1 activation and on manual initiation: Rest of the World.
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Dimensions 13.4 x 3.8 x 2.7 cm
Weight 92g
Storage Temperature -30°C - +70°C
Operation Temperature -20°C - +55°C
Waterproof 10m depth
Standards RTCM SC11901, EN303 098-1
Messages Individual Distress Relay Distress Alert (by single call made on press of the activation button)
AIS Transmission
Transmission Power 1 Watt
Frequency 161.975/162.025MHz ±500Hz
Repetition Interval 8 messages/minute 
DSC Transmission
Transmission Power 0.5 Watt
Frequency 156.525MHz
Repetition Interval 1 every 5 minutes
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