Acoustic Deterrents

SeaGuard acoustic deterrent hanging outside a fish pen underwater with salmon swimming in the pen in the background

Round-the-clock safe protection of your livestock from opportunistic predators is critical. Our new generation of SeaGuard has been carefully developed to harmlessly but effectively deter predators from making attacks on fish livestock, while providing a complete suite of performance monitoring and data recording functions, and cetacean friendly features.

The SeaGuard 2-Channel Acoustic Seal Deterrent System is a proven ‘must have’ for fish farms experiencing difficulty with unwanted predators. The SeaGuard does not use sound alone to deter and maintain deterrence of seals and other predators, it uses physiological techniques rather than psychological ‘scaring’. This creates an acoustic barrier or guard around each pen and the site to safely and promptly deter seals.

Key Points

  • Proven 10khz output using Airmar acoustic projectors.
  • Cetacean friendly “soft start” feature.
  • Simple and reliable system design – two projectors per controller meaning no cables between pens.
  • Projector status monitoring including projector detection, short & open circuit.
  • Battery status monitoring with high-reliability digital signal processing.
  • Onboard data logging & wireless link to barge/shore.
  • Custom user software on barge/shore computer with data logging.
  • Customisable firing duration and soft start with remote access from Gael Force personnel.
  • Space-efficient design for low mechanical & wind loading on pens.
  • Optimised projector output and up to 3 times sound energy per site compared to our older six-channel system.
  • Barge/shore powered with battery backup - various capacity options with built-in battery protection circuitry.
  • IP68 (3m) rated enclosure.


Input voltage 24Vdc 240Vac required for charging
Connections 24Vdc power input 2x SeaGuard projector outputs SeaGuard COMMS output
Average current draw On Low Power mode: 0.8A (Approx.) When Firing: 2.6A (Approx.)
Effective R=range 40 metre radius Full 360 degree guard (omni-directional)
Project cable Polyurethane Jacket
Project cable length Made to measure for specific sites
Battery coverage 48 hours Internal PCB battery for datalogging ** Alternative battery packs available
Antenna range 15+ km (directional) 150 mbps
Rendering of a fish pen showing the sound waves projected by the SeaGuard acoustic deterrent
SeaGuard and SeaGuard control box next to each other

Ease of maintenance

SeaGuard has been designed with simplicity in mind and with an emphasis on reliability. With just two projectors per controller on a pen, this means there are no unnecessary cables running between pens.  This reduces the likelihood of damage to cables and provides ease of maintenance, which increases system reliability and livestock protection.

Dolphin jumping out of the water

Cetacean friendly

We understand the need to ensure that our acoustic deterrents do not cause unnecessary harm to cetaceans.  Therefore, SeaGuard includes a whale and dolphin-friendly ‘soft-start’ function - an extremely beneficial operation that gives mammals the opportunity to evacuate the area prior to the unit ramping up to full power.

SeaGuard screen of data logging

Data Logging System

Full data logging and remote system controllable parameters come as standard with SeaGuard.  With dedicated software, you can audit the full history as well as receive alerts of any malfunctions or reduced performance. Each SeaGuard can be serviced with ease by dialling in, reducing service time and costs.

Get in touch to discuss your requirements

Craig Graham
Aquaculture Sales Manager

+44 7720 074350

Gael Force Group Ltd
136 Anderson Street
South Kessock