Each diver has certainly wondered what happens if he gets separated from his “Buddy” or dive group and in addition has no orientation where the dive boat is.

The tiny portable transmitter unit easyRESCUE-DIVEpro can be worn on the vest during the dive. Don’t panic, it is water-resistant to more than 100 meters!

The unit is developed out of the AIS S.A.R.T. emergency beacon easyRESCUE-DIVE for safari boats as well as diving bases. The unit of each member of the diving group will be activated before diving and handed out with specific briefing “how to use”. A persistant position report will be send by every unit received by the diving boat or diving center. By means of position report the diving group could be tracked on water surface to be “insight”.

If the group appears out of sight of the diving boat, the diving master takes out his transmitter, unfolds the antenna and lift up the unit as high as possible. The diving boat will get the current position to drive by and pick up the whole group.

If the case described above occurs, on water surface the diver takes out his easyRESCUE-DIVEpro, unfolds the antenna, pushes the slider down and press the ALERT button. Via VHF radio the dive boat receives detailed information regarding the exact GPS position of the diver along with his/her Course Over Ground (COG) and Speed Over Ground (SOG) if he/she is in a current. This information is updated every minute. Just fix the unit at the carried along “ALERT BUOY” or reach you arm out of the water as high as possible.

Scenario as followed is running in the background:

The easyRESCUE-DIVEpro with its built-in GPS receiver will get a fix within the next 35 seconds after activation. With this fix the current GPS position is transmitted with a formal emergency telegram on two world wide standardize VHF frequencies.

Additional to the GPS position, which is updated every minute, data as “course over ground” and “speed over ground” are transmitted as well as an individual unit ID.

These data within this emergency telegram will be received by every AIS equipped vessel in the surrounding of the victim. Radiation range depends on the height of the receiving antenna. Range up to 10 nautical miles or more are possible.

Since 2007 for every commercial vessel of more than 300 BRT and/or 12 people crew/passenger having AIS system aboard is mandatory by law. Each year the number of pleasure boats using AIS system as well is still increasing. The pleasure boaters at least want to have all information regarding the commercial vessels.

All these vessels do receive the emergency telegram as a position report on the chart plotter or PC screen and can assist with fast and effective help.


  • Locator unit based on approved VHF technologies
  • Ready for 100m diving depth
  • No registration needed
  • No license needed
  • 2 step communication
    • Position report to diving boat
    • regular AIS S.A.R.T. emergency message
  • proprietary frequencies for diving groups in special areas
  • Integrated GPS receiver
  • BSH / 4615 / 4361565 / 10 (for base until easyRESCUE A040)
  • Frequency range
    * 161,975 MHz & 162,025 MHz for AIS Alert
    * customized frequency for position report
  • Transmission mode
    Position report
    Msg. 01
    * AIS position report
    * Unit-ID
    * Speed over Ground (SOG)
    * Curse over Ground (COG)
    ALERT ModeMsg. 01
    * AIS Positions report
    * Unit-ID
    * Speed over Ground (SOG)
    * Curse over Ground (COG)
    Msg. 14 – Safety message
    * Unit-ID
    * Text “SART active” in distress
    Text “SART TEST” in Test mode
  • Radiation power: 0,5 Watt
  • Waterproof: 100% down to 100 meter diving depth
  • Operation temperature: –20°C – 65°C
  • Dimensions: Length: 125mm | Width: 68mm | Height: 30mm
  • Weight: 380 Gram
  • Battery lifetime: rechargeable batteries | 1000 charging periods possible
  • No registration
  • No VHF radio license
  • No additional costs
  • Position report to diving boat
  • AIS S.A.R.T. emergency message to all AIS receivers within
    transmission range
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