An AIS Man Overboard (MOB) device is designed to be carried by individual crewmembers and used in the event of a Man Overboard situation or other personal emergency. When activated it transmits an AIS MOB message containing your position and ID via AIS (Automatic Identification System). The transmission will also be detected by the all AIS equipped vessels within range. This information can be displayed on a chartplotter or ECDIS display if interfaced with an AIS receiver/transceiver.
As the AIS MOB device includes an inbuilt GPS receiver, your current location is also transmitted, dramatically reducing the time taken to locate and rescue you even in poor visibility. Our AIS MOB devices feature a flashing light to help rescuers pinpoint your precise location in the water.
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.
The McMurdo SmartFind S20 AIS MOB is designed to be fitted to a lifejacket using the clips supplied, ready to be activated in the event of a man overboard situation. After the lifejacket is inflated, pull the orange locking tab downwards which allows the red cap to be released. Pulling off the red cap deploys the antenna and activates the SmartFind S20 SRS.
The SmartFind S20 AIS MOB features a high precision GPS and it will transmit position information and a serialised identity number back to your vessel’s onboard plotter, enabling you to be quickly located and recovered. It will transmit continuously for a minimum of 24 hours and has a 7 year battery storage life. The flashing LED indicator light also makes you easier to spot at night.
An automatic deployment option is offered when professionally fitted to compatible lifejackets, allowing the SmartFind S20 to automatically activate when the lifejacket is inflated.
McMurdo's SmartFind AIS MOB device was used in the famous rescue of Andrew Taylor when he fell overboard during the Clipper Round the World yacht race in 2014. Read about his amazing rescue in the case study below where he talks about how "My dry suit kept me alive, but my AIS MOB device saved my life."
Manually activated personal safety device
Easy to operate
Automatic deployment option*
Designed to be mounted on a lifejacket using the clips supplied
Transmits GPS tracking information over AIS
Compact and lightweight
Waterproof, buoyant and submersible to 5 metres
Flashing LED light
Minimum 24hr continuous operation
7 year battery storage life
Self test facility with battery use indicator
* with compatible lifejackets
Installation and Activation
The Smartfind S20 SRS is designed to be used mounted on a lifejacket using the clips provided, prior to going to sea. When it is installed in the lifejacket the orange safety tab is released, which ‘arms’ the S20 ready for use. To use, first inflate the lifejacket. When it is inflated, pull the orange tab downwards to pull the red cap off the S20. This will deploy the antenna and automatically switch ON the S20 SRS.
Automatic Activation Supported Lifejackets (PFDs) with compatable lifejackets.
Providing it is professionally fitted, by the lifejacket manufacturer or one of its authorised service centres, the Smartfind S20 SRS can be made to activate when the lifejacket inflates. This makes the Smartfind S20 SRS as automatic as the lifejacket, activating as a result of the lifejacket being inflated.