90% of man overboard accidents (MOB) occur in calm seas


PLB’s operating on Local Area Systems use a combination of; 121.5MHz radio direction finding tone, VHF DSC distress alert (Mayday) on channels 70 & 16 and AIS GPS tracking, to alert the nearest vessel and provide updated location & tracking details to within +/- 1m.

The Martek Marine PLB range, the first to be Atex1 approved, has been designed to meet the new international safety standards and uses a combination of 121.5MHz, VHF DSC and AIS GPS technologies in a single, compact, robust unit giving you and your crew the greatest chance of survival in the event of a MOB situation.

Be the first to carry this market-leading product, with an exclusive offer. Simply register your interest today:

  • Flight approved
  • Activates automatically on immersion in water or manually
  • Alerts via traditional 121.5MHz
  • Indicates GPS position via AIS every minute
  • Individual MMSI identification
  • Multiple targets can be tracked simultaneously
  • Up to 75 mile range with worldwide satellite coverage
  • Built in flashing light enhances visual detection
  • Utilises existing Sea Marshall 121.5MHz receivers/SARfinders


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