McMurdo Smartfind S20 AIS MOB Device

McMurdo Smartfind S20 AIS MOB Device

Global Coverage

Keep in contact anywhere on the planet with this device.  Simply get a clear line of sight to the sky and you'll be able to take advantage of its features.

SOS Function

Have added peace of mind by settting up the designated SOS button on this device.  You can either set this up to send to friends, family or colleagues or alternatively why not be super safe and sign up to GEOS emergency response (GEOS service not available on PLBs or EPIRBs)

GPS Compatible

Taking advantage of the GPS constellation this device with give you pin point accuracy when sending out a position report.

Subscription Free

There is no additional subscription or registration fees after the purchase of this device.
$205.00 (Ex. VAT)

McMurdo SmartFind S20 sends your GPS co-ordinates via AIS to all AIS equipped vessels within range to alert them that assistance is required.

PDF Downloads

View FileMcMurdo Smartfind S20 Brochure    Size: (2.44 MB)

McMurdo Smartfind S20 is a revolutionary development in safety at sea as one of the first products to scale down AIS search and rescue technology for personal use.

In the event of an emergency at sea, McMurdo Smartfind S20 sends your GPS co-ordinates once a minute for a minimum of 24 hours to all AIS equipped vessels within a 4 nautical mile radius to request assistance. The first message is generally sent within 15 seconds. The Smartfind S20 also feature a flashing light to help rescuers pinpoint your precise location in the water.

Weighing just 120g Smartfind S20 is designed to be attached to a lifejacket and with compatible lifejackets* can even offer semi-automatic activation.
• 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
• Unique ID
• Flashing LED light
• Minimum 24hr continuous operation
• 7 year battery storage life

* Automatic Activation - When Smartfind S20 is professionally fitted onto a certified lifejacket it will automatically activate transmission when the lifejacket is inflated.  For an up-to-date list of compatible lifejackets please see McMurdo's website.

Unlike most satellite enabled notification devices, the McMurdo Smartfind S20 requires no monthly or annual subscription, making it a cost effective GPS enabled emergency beacons available 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.

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.

Compatibility: Note that most modern AIS plotters and DSC VHF units comply with the standards for receiving MOB transmissions. However, it is recommended that you check with your equipment manufacturer to ensure compatibility. DSC functionality may vary - or be disabled entirely - according to the regulations of individual countries.

General Specifications
Dimensions 1.06" x 1.85" x 4.88"
Weight 4.23oz
Battery Type 6V Lithium Metal
Battery Replacement By service centre
Battery Use Logged by microcontroller
Exterior Finish Hi impact ABS/PC Orange
Sealing depth Immersion to 5m (16.4ft)
Operating temperature -4°F to +131°F(-20°C to +55°C)
Storage temperature -22°F to +158°F (-30°C to +70°C)
Activation Manual two stage
Self Test (short) Battery use indication
GPS Self test (long) MOB TEST transmission with GPS position
Air Cargo IATA UN 3091, not restricted
Classification PI970 Section II
AIS Transmitter Frequency AIS channel 1-161.975 MHz, AIS channel 2 - 162.025 MHz
AIS Transmitter Power 2W nominal
AIS Transmitter Transmit antenna Sprung whip
 AIS Messages Transmitted Message 1 (UID, GPS position, SOG, COG, UTC) Message 14 (MOB ACTIVE or MOB TEST)
GPS Type 50 channel
Antenna Type Ceramic patch
GPS Position Update Every minute
First transmission After 10 seconds (no GPS)
Range 4 nautical miles (typical)
Secondary location Flashing white LED device and status indicator
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