The device emits an electrical impulse that upsets the gel-filled sac that’s found in the noses of sharks, rays and platypus (if they also make you nervous). The shark (or platypus) feels this electrical field and their sacs spasm, which makes them turn away.
Shark Shield CEO Lindsay Lyon says it’s like being too close to the speakers at a rock concert. “We had to make sure the field was strong enough to stop the shark long before it gets to the surfer,” he says. “If it’s travelling at 40km/hr and feels the impulse when they’re up close, it’s too late to pull out of the attack. The Shark Shield surfer device creates a ‘force field’ about 6 meters around the person in the water.”
The device has undergone stringent University testing, as well as in-situ, in the shark-filled waters off South Africa.
“It’s a small transmitter that sticks to the underside of your board,” says Lindsay. “It’s been tested by Pro-Surfer Tom Carroll, who says there is no effect on the way the board handles in the water. Then the electronics are hidden in a kicker in the tail pad.
A recent study by Choice magazine explored the shark-repellants currently on the market and found this one to be the best. You can read that report HERE
“Nothing is 100% effective, but this is pretty close,” says Lindsay. “And if it gives you back your piece of mind, knowing it’s highly unlikely a shark will come anywhere near you, then it’s a worthwhile investment.”
You can find out more info HERE