Take Control of Predator Attacks



This is an intelligent acoustic deterrent system designed to deter seals and sea lions from fisheries. It’s proven effective worldwide, with more than 600 systems deployed since 2014 to protect sites in Scotland, Chile, Finland and Russia.

SealFence uses a unique soundwave delivered through a network of projectors placed around each site. These work together to create an acoustic fence of protection that often completely eliminates seal and sea lion attacks.

Many of OTAQ’s innovative technologies are incorporated into Sealfence, including Active Condition Monitoring (ACM). This constantly monitors and records performance, with full control available via a touchscreen located on a barge or boat.

Despite integrating incredibly advanced technology, Sealfence is also tough and has been designed to cope with permanent installation on even the most exposed fisheries. You can trust in SealFence: it’s proven reliable with a negligible breakdown record backed up by industry-leading levels of support from OTAQ.

Active Condition Monitoring (ACM)

ACM gives you complete confidence that your system is working correctly 24 hours a day. Using our innovative Smart Projector technology a wireless network from each module communicates with a PC on your barge running SealFENCE Monitor software to provide live and historical performance data.

Modular System

Our system is modular and very easy to deploy. As each unit is self contained, no additional cables between cages are required delivering a more reliable system that is easy to expand or repair.

Technical Specification

Input Voltage24vDC. (230vAC required for battery pack)
Connection24vDC Power Input
Smart Projector Output
OceanTALK™ Air Wireless Link for ACM
Average Current Draw0.5A (based on factory default duty cycle)
Effective RangeUp to 45m from projector (this may vary by species or site)
Projector CablePolyurethane Jacket, Kevlar® reinforced (200kg rated)
Projector Cable Length25m standard - longer cables available by special order
Projector MaterialHigh performance polyurethane moulding

Talk To Us

Our specialist and knowledgeable team can assist you select the most appropriate product for your specific needs.

Call us on +44 (0) 1224 673301 or email info@otaq.com