Worn on your wrist or ankle, one Sharkbanz unit will help reduce the risk of an unwanted shark encounter, as the deterrent field of a single Sharkbanz unit is approx. 1-2 meters (about 3-6 ft).

However, wearing two Sharkbanz (one on your ankle; another on your opposite wrist) will increase the overall deterrent field size and thus provide greater coverage – similar to how other safety devices work. If only wearing one, we suggest wearing Sharkbanz on your ankle, as the majority of shark bites occur on the ankle and leg areas.

Don't worry, your Sharkbanz is not "leaking" or defective. Quite the opposite.

Sharkbanz' powerful magnetic technology will attract tiny ferritic (iron) particles commonly found in the ocean. You may observe these minute particles sticking to your Sharkbanz after an ocean swim (oftentimes appearing like a dark soft substance). Do not be concerned! Your Sharkbanz is not leaking, nor is its effectiveness reduced.

No.

Sharkbanz emit a magnetic field that quickly drops off, so sharks cannot sense it from far away. Once sharks enter this magnetic field range, they can be deterred, as Sharkbanz has shown to over-stimulate their electroreception. As you note, based on the laws of magnetics, this magnetic field created by Sharkbanz drops off at the inverse cube of the distance from the source - this means at a distance of 10 feet and beyond the field is not detectable by even the most sensitive laboratory equipment.

Sharks will not be attracted into the magnetic field.

Much like other safety devices, such as a bike lights, Sharkbanz reduce the risk - they do not eliminate the risk altogether. This principle applies to all common predatory sharks, Great Whites included. Customers in Australia, South Africa, California, Cape Cod, Rhode Island, and Oregon have used our products to deter investigative Great Whites. You can read these unsolicited accounts on our Reviews page.

Great Whites rely heavily on their electroreception when swimming in open water, and Sharkbanz could effectively deter an investigating Great White. However, it's important to note that Great Whites are unique in that they are the only shark that acts as an ambush predator, attacking from a long distance at high speed. There is no effective way to prevent this type of ambush attack when it occurs.

From a testing standpoint, Sharkbanz are the result of over a decade’s worth of peer-reviewed scientific research on the use of magnetic technology as an active and effective shark deterrent. This compilation of research evidences that permanent magnets project detectable magnetic fields underwater that produce sufficient magnetic fields to elicit avoidance in a range of species including: White Sharks (C. Carcharias).

Sharkbanz deterrent technology also has the ability to deter stingrays, which helps beachgoers, wade fishermen, surfers, and divers reduce the risk of a painful incident.

Our technology will not repel all marine life or other sea creatures like turtles, dolphines, etc.. The reason Sharkbanz can repel sharks as well as other elasmobranch species such as stingrays is the presence of electroreceptors in these species, which detect the magnetic field produced by our technology.

You will still be able to see and encounter non-shark species while wearing Sharkbanz in order to reduce the risk and enjoy greater peace of mind. If you fish and use our Zeppelin product to protect your catch, this device will not deter any target fish species.

As long as your Sharkbanz is not exposed to heat over 150°F (70°C) and the chassis is not physically damaged, then the magnetic technology will not lose its effectiveness. The longevity of the physical band varies depending on the frequency of use and amount of abuse.

If you ever encounter any potential issues or concerns about your Sharkbanz, you can always write us and we will help.

The ‘Sharkbanz 2’ product is automatically protected from defects resulting from faulty workmanship or materials for a period of 1 year from the date of purchase.

Our ‘Hassle-Free Extended 5-Year Limited Warranty’ certificate extends the warranty period to 5 years from the date of the original ‘Sharkbanz 2’ purchase. This ‘Hassle-Free Extended 5-Year Limited Warranty’ protects from defects resulting from faulty workmanship or materials.

Visit our Sharkbanz Fishing page, and shop our award-winning Zeppelin product, used for bottom fishing, wade fishing, and spearfishing.