What is NoShark?

NoShark is a new and improved shark deterrent device that helps keep sharks at bay.

How does it work?

NoShark works by emitting a high voltage proprietary signal to deter sharks.
The device sends out an electric pulse that short-circuits the gel in a shark’s nose.

Who can use NoShark?

NoShark is great for swimmers, divers, surfers, or anybody with an aversion to sharks, everyone!

Is it comfortable?

NoShark is small, lightweight device that can be attached to any limb or your gear for the ultimate shark protection.

Stay Safe! Order Noshark Today

Shark Protection NoShark is a new and improved shark deterrent device, formerly called Electronic Shark Defense Systems or ESDS.

NoShark Shark Deterrent In Action

NoShark Electronic Shark Deterrent In Action. Emmett Yancey of Aqua Adventures wearing a NoShark Dive Unit. The sharks stay away as he spears his fish then returns to his boat with all of his catch.

About Us

NoShark New and Improved device that repels sharks

Sharks possess a sense called electroreception that allows them to receive very small electrical signals. NoShark works by emitting a high voltage proprietary signal to deter sharks.   It is a small device worn around the ankle that works for hours with just one charge.
Our research concluded signal strength alone is not an effective means to deter sharks. Equally, if not more important, is the signal wave form.

Read More

NoShark Brochure Learn About Our Product and How It Works

SHARKS are extremely sensitive to alternating electric fields. A potential gradient of only 0.1 µV/cm is sufficient to evoke in Scyliorhinus canicula a reflex contraction of the eyelids (“winking of the eyes”), and to affect the respiratory rhythm of Raia clavata (“spiraculum reflex”). Such a weak electric field is perceived with the ampullae of Lorenzini. The ampullae are not only very sensitive to thermal and mechanical influences as found electrophysiologically, but also respond to electrical stimuli.
“Electro-perception in Sharks and Rays.” Nature 212, 1232 – 1233 doi:10.1038/2121232b0

View Brochure PDF