Professional Man Over Board device incorporating both AIS and 121.5MHz homing beacon

  • AIS transmissions for position plotting
  • Designed for automatic activation in life jacket
  • >12hours transmission
  • 2 year warranty
  • M100X ATEX and IECEx Zone 2
  • 121.5MHz transmission for homing
  • Simple to fit
  • 66 channel GPS for fast accurate positioning
  • Five year battery life

The M100 and M100X MSLD (Maritime Survivor Locating Device) from Ocean Signal has been designed to meet the needs of the professional marine market and its offshore workers. The M100 and M100X can be fitted to a life jacket and will automatically activate on inflation of the jacket. Once activated the M100 and M100X will transmit an alert to all AIS receivers and AIS enabled plotters in the vicinity. The M100 and M100X also transmit a 121.5 MHz homing signal in addition to the AIS. The integrated 66 channel GPS ensures a position update is provided every minute via AIS. The M100X is designed to meet the European ATEX directive and IECEx approval for use in zone 2 explosive atmospheres.

The following statement is for US customers only:  This device has not been authorized as required by the rules of the Federal Communications Commission. This device is not, and may not be, offered for sale or lease, or sold or leased, until authorization is obtained.

Whilst every effort has been made to ensure the information in this leaflet is accurate, products and specifications may be changed without notice.


AIS Transmission

Transmit Power (EIRP) 1Watt
Frequency 161.975/162.025MHz
Baud Rate 9600Bd
Synchronisation UTC

Homer Transmission

Transmit Power(EIRP) 50mW
Frequency 121.5MHz


Temperature Range (Operational) -20°C – +55°C
Temperature Range (Storage) -30°C – +70°C
Damp Heat (humidity) 40°C @ 93%
Waterproof 10m depth
Dimensions 132mm x 53mm x 28mm
Standards RTCM SC11901, EN303 098, EN302 961


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