How it works

Nothing is More Effective

Shark Shield is the world’s only scientifically proven electrical shark deterrent, nothing is more effective.

Sharks have short-range electrical receptors in their snouts used for finding food, Shark Shield’s patented technology creates a powerful three-dimensional electrical field which causes unbearable spasms in these sensitive receptors turning sharks away, including Great Whites.

Shark Shield technology has been developed over twenty-years in partnership with the world’s leading experts in sharks, including the KwaZulu-Natal Sharks Board in South Africa and independent universities, resulting in peer reviewed science journals confirming the technologies effectiveness in deterring sharks.

Twenty Years of Development

In 1995, it was discovered that sharks have a heightened sensitivity to close-range, low frequency electrical fields. Two decades of intensive global research has developed this knowledge into a reliable and essential piece of equipment that protects visitors to the ocean and the sharks that live there.

Shark Shield consists of two electrodes which, when both are submerged, emit a three-dimensional electronic field that surrounds the user. When a shark comes within a few meters of the Shark Shield, the strong electronic pulses emitted by the device cause the shark to experience muscle spasms.

This does NOT harm the shark in any way, but merely causes it to experience a high level of discomfort. From testing, the closer the shark is to the Shark Shield field, the more spasms occur in the sharks’ snouts, which results in it turning away from the electronic field, thereby protecting the user.


Ocean Guardian

Shark Shield safety products are trusted by surfers, divers and ocean lovers around the world and are recommended safety equipment in professional industries such navies and abalone diving.

With no known permanent harm to sharks the products directly support shark conservation by removing the need for culling or lethal means of enabling humans and sharks to share our oceans; the ultimate ocean guardian.

Image of Ocean Guardian

Scientifically Proven & Independently Tested

When you use a Shark Shield you are supported by the credibility and belief of some of the worlds leading oceanic organizations including the KwaZulu-Natal Sharks Board in South Africa, the University of Western Australia Ocean Institute and Flinders University.

You can review peer reviewed published papers in our Scientific Research section. The video below shows Ian “Shark” Gordon testing Shark Shield and the effectiveness of the technology on even the largest of white sharks.

As a result of continuous research and investment over the past twenty years, Shark Shield has lodged numerous patents relating to electrical shark deterrents.

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