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Mobilis DB 500
small data buoy platform

The DB 500 platform is a compact unit that can be easily transported. As with the larger buoys there is through-hull access for underwater instrumentation.

The buoy can be supplied as a hull-only assembly for customers to fit their own towers. Alternatively, Hydrosphere can supply a variety of towers to suit individual requirements.

All Mobilis data buoys comprise a robust central steel structure with through-hull access for underwater instrumentation and cabling. Buoyancy is provided by multiple-section rotationally moulded polyethylene (PE) floats, which are bolted around the structure.

A range of towers are available depending upon focal heights, payloads, and power requirements. Towers are manufactured from marine grade aluminium and can be fitted with a large range of battery housings, solar panels, sensor rings and topmarks.

Replaceable structures can be held where a buoy requires to be quickly redeployed with a different equipment configuration.

DB 500 Drawing


  • UV stabilised MDPE floats - retain colour within IALA guidelines for in excess of 15 years
  • Modular design
  • Solar and mains power supplies
  • built-in safety features such as non-slip deck
  • power management system
  • Range of marine grade aluminum towers available
  • Can be fitted with battery housings, solar panels, sensor rings and topmarks
DB 500 diagram

Buoy Configurations

  • Special Mark Buoy