Man Overboard Systems…Leisure/Professional Yachting

Sea Marshall ® Self Managed Rapid Alert & Locate ‘SOS®' Man Overboard Systems

SARfinder® self-managed MOB LOCATING System
Click to Enlarge
…a simple, highly effective 2 part system which integrates with Coast Guard SAR if required.
Worn by each of the deck crew… Fitted to the yacht…
PLB8-LR ‘SOS®’ Man Overboard Alerting Unit
£179.00 each
SARfinder® 1003 MKII Man Overboard Locator/Alarm
£1750.00 each
Includes FREE Test/Training Beacon worth £210.33
Click to EnlargeClick to EnlargeClick to EnlargeClick to Enlarge Click to EnlargeClick to EnlargeClick to View
  • No limit to the number of Alerting Units used in the system
  • No limit to vessel size
  • Fully Automatic activation with manual over ride
  • Splash activation prevention technology
  • Easy to use and maintain
  • Miniature size
  • User replaceable 5 year battery
  • Fully waterproof and robust
  • Self Test facility
  • Battery Status Indicator
  • Unique Electroluminescent Detachable Antenna Necklace
  • Easily Integrated into lifejacket
  • 121.5MHz Integrates with SAR services
  • Test Frequencies 121.65 MHz and 121.775 MHz available
  • Automatic immediate Audio and Visual Alerting of MOB (Loud audio alarm combined with flashing hyper bright LED MOB warning lights on display)
  • Immediate Locating of an MOB on the LED compass style display
  • Approximate range indicator
  • Easy to operate with user friendly controls
  • Shows direction of MOB relative to ships head on clear
  • LED compass style display
  • Approximate range indicator – near or far
  • MOB collision avoidance warning indicator
  • High quality construction
  • Antenna includes 16m cable and brackets as standard
  • External MOB Siren included
  • Mounting brackets for the antenna and display included
  • Waterproof IP-66 display (fully sealed IP-67 version available)
  • IP-67 Antenna
  • Test & Trials Frequencies 121.65MHz & 121.775MHz
  • 12/24V power supply
  • Option for Sea Marshall® CREWFIX® NMEA GPS output

Low cost ... used by professional operators worldwide
NEW!! Crewguard GPS plot MOB Alerting System
Click to Enlarge
A simple, highly effective, automatic man overboard alerting Safety System with GPS plot. This system automatically alerts you of a man overboard, recording the GPS position of the incident allowing you to track back to that point. The plbs in this system integrate with SAR services for precise tracking on 121.5MHz should you need extra support.

This system includes:
  • 1 x Crewguard MOB Alerm pre-wired to CREFIX® NMEA box (for GPS plot)
  • 1 x External Antenna with bracket & 5m of cable
  • 1 x PLB8-LR 'SOS®' (121.5Mhz) ...add extra PLBs as required
£599.00 (Price if bought separately £724.00)

Worn by each of the deck crew… Fitted to the yacht…
PLB8-LR ‘SOS®’ Man Overboard Alerting Unit Crewguard CG-121 MKII (rev.a) pre-wired to Crewfix® NMEA box
Click to EnlargeClick to EnlargeClick to Enlarge Click to EnlargeClick to Enlarge
Fully automatic Man Overboard Alerting unit (PLB)
  • Small & comfortable to wear
  • 121.5MHz 'SOS' signal provides precision tracking
  • Detachable Antenna for ease of fitting into
  • lifejacket/garment
  • 1 metre long electroluminescent light antenna cord
  • Internal loudspeaker
  • 5 year user replaceabel battery
  • LED battery status inicator
  • 24-36 hour transmission time
Dedicated Man Overboard Alarm Base Unit
  • Automatic immediate MOB alerting
  • NEW LED MOB warning indicator
  • Easy to operate and install with user friendly controls
  • Waterproof IP-66 display
  • Approximate range indicator (near or far)
  • High quality construction
  • Training Frequencies 121.65MHz & 121.775MHz
  • 12V Power - (24 to 12V DC converter available see Page 19 of our price list)
  • External Siren included for loud audio MOB alerting
  • Optional external antenna/increased coverage
  • CREWFIX® NMEA GPS output
  • Low cost - used by professionals worldwide
Lifejackets External Antenna for Crewguard CG-121 MKII
MRT ltd. Can provide both 150N and 275N high quality lifejackets which have pockets built in to hold the Sea Marshall® PLB
  • External antenna with mounting brackets
  • Significantly increases monitoring area of MOB system
  • Comes with 5m cable and plugs/fittings/mounitng bracket.
Alerting Unit Approx Range Distances

‘As used by professionals the world over!’