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MO520

AIS Man Overboard Beacon 

MO520

QUICK START GUIDE

Part Number: 311139   Drawing Number: 52139-1

Head Office: 17 Gibbon Road, Winston Hills NSW 2153, Australia. T: +61 (02) 8867 6000

gme.net.au

GME Pty Ltd

Overview

The MO520 is a man overboard beacon that uses AIS (automatic 
identification system) technology. It greatly increases the likelihood of 
man overboard rescue by alerting nearby vessels equipped with AIS.

When activated in an emergency situation, the beacon transmits alert 
messages including the GPS position and a unique ID, using either 
water sensor or manual activation. 

The MO520 is built using state-of-the-art technology, it is small and 
lightweight, easy to use and is reliable in emergency situations.

MO520

In The Box 

Item Description

1

MO520 Beacon

2

Carry Case

3

Quick Start Guide

4

Oral Tube Clip

5

Test Tab

MO520

Item

Description

1

Antenna cap

2

Antenna

3

Battery LED (Green/Red)

4

Strobe LED

5

GPS LED (Green/Red)

6

Lanyard

7

Test Area

8

Water sensor

9

Test tab with magnet

10

Activation tab

Fitting on Life Jacket

Strap Clip

The MO520 is supplied with a clip that can be used 
to attach the device to a lifejacket strap.

Oral Tube Clip

The MO520 is supplied with a clip that can be 
attached to a life jacket’s oral tube. The clip can be 
attached on the left or right side of the oral tube.

Activation

The MO520 can be activated 
manually or by water sensor.
Caution: Avoid eye injury when 
deploying the antenna by pointing 
the device away from you.
To activate the MO520 manually:
1.   Pull off the red 

tab antenna cap 
to release the 
antenna. 

2.   Pull off the 

activation tab to 
start transmission 
of messages.  

To activate the MO520 using the 
water sensor:
1.   Pull off the 

red tab 
antenna cap 
to release 
the antenna. 
 

2.   The  water 

sensor is 
located 
at the 
bottom of 
the device. 
The device 
will activate and begin 
transmission when the 
sensor has been immersed 
in water for more than three 
seconds.

PRINTING SPECIFICATIONS: MO520 QUICK START GUIDE
Dimensions: 210 X 297 folded to 105 x 99mm 

Stock:  

130 GSM Satin Art Both Sides

 

Print:  

CMYK Throughout

Finish: 

Folded to size

Part Number:

 

311139

    

Drawing Number:

 

52139-1

ARTWORK SUMMARY 

DRAWING #

52139-1

PART #

311139

JIRA REFERENCE

GRA-2818

ECO #

SUPPLIER

ALLTEK Marine

MPE #

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