Video above shows sharks dodging a bag of fish when the device is nearby, then shredding it to smithereens when the unit is taken away.
Pro surfer Joel Centeio believes in the small device he straps to his ankle when he takes to the water. “It just gives me that sense of safety. And I feel comfortable when I’m wearing it,” he said.
Sharks possess a sense called electroreception that allows them to receive very small electrical signals. The Electronic Shark Defense System (ESDS) works by emitting a high voltage proprietary signal to deter sharks. ESDS is a small device worn around the ankle that works for hours with just one charge. Researches concluded signal strength alone is not an effective means to deter sharks. Equally, if not more important, is the signal wave form. After years of development and testing we believe our proprietary signal combined with sufficient strength makes ESDS extremely effective.
The Electronic Shark Defense System was created in about five years. Its creator, Mr Wilson Vinano explains that the Electronic Shark Defense System or short “ESDS” emits an electric pulse that repels sharks by affecting the gel in a shark’s nose.
The Electronic Shark Defense System was tested on divers that swam around with it with sharks around. The sharks would just fade away. They wouldn’t even attempt to come close. It is about the size of a deck of cards and weighs about seven ounces. It runs on a battery that lasts nine hours before it needs a recharge.
The ESDS device is designed to be attached to a surfboard leash, but also can be used by divers.
Surfers, divers and even normal beach goers should use the Electronic Shark Defense System.
Frequently Asked Questions
Q: Can I change the battery?
A: No, the battery is sealed within the unit.
Q: How long will the unit last?
A: The battery is rated for 300 charges. If you swam twice a week for an entire year, the unit should last about 3 years.
Q: What is the effective range?
A: Our tests have shown an effective range of about 20 feet , sometimes much more.
Q: Does the device work with all species of sharks?
A: All sharks have electroreception. We have not been able to test the device on all species.
Q: Can I get shocked by the device?
A: ESDS emits a high voltage signal. Touching the probes while the device is activated will produce a very mild electrical shock. We caution users not to touch the probes or handle the device while it is activated.
Q: I have a pacemaker, can I use ESDS?
A: If you have any medical condition, please check with your physician before using ESDS.
Q: Is the device guaranteed to work?
A: It is impossible to predict what sharks will do. However, our tests have shown ESDS to be very effective. Nothing is 100% and we advise taking all necessary precautions while in the water whether you are using ESDS or not.