The bigger the holes in a fishing net, the more young fish will be able to escape, grow bigger and breed. So to protect young fish, managers set minimum mesh sizes for fishers’ nets.

Making sure that nets comply with government recommendations is the difficult job of fisheries inspectors. But it is not just fisheries inspectors who check mesh. Scientists also need to check the size of the mesh they use for surveys to make sure it is the standard size.

The Omega Mesh Gauge is the only instrument available that fully complies with the Commission Regulation (EC) No. 517/2008, published on 11 June 2008. This regulation describes the use of the instrument, the prescriptions and procedures, in order to achieve objective and legally tenable measurements.

OMEGA Mesh Gauge

The OMEGA mesh gauge is a handheld electronic measuring instrument with data storage facilities for the measurement of the mesh opening of fishing nets, in such a way that its measuring results can be accepted by official authorities.

With a close partnership with Marelec (Belgium) Observator developed the OMEGA Mesh gauge within a European project, coordinated by the Sea Fisheries department of Belgium. The project started in 2002 and after several studies, laboratory and field test the mesh gauge is now available for those who intend to measure on fishing net with the highest accuracy and the possibility of storing the information.


  • All types of netting
  • Precision: 1 mm
  • Direct reading of measuring force applied
  • Direct reading of mesh opening
  • Minimal human influence
  • Simple to operate
  • Robust and durable
  • Easy maintenance

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