As used by Hove Surf Lifesaving Club and many of our Salty Seabirds swimmers who want to be able to gain someone's attention if they need it in an emergency. Attach to your tow float when you go for your swim.
Loud, totally waterproof, and can be heard underwater! Great for scuba divers, snorkellers and swimmers for when being heard is a matter of life and death.
Exceeds Coast Guard & SOLAS requirements.
Colour: Orange
"World's Loudest Whistle' apparently! Do not blow near to anyone's ear or you will damage their eadrum.
Tests show that the Windstorm™ whistle produces a sound which is more easily heard when compared to other popular whistles. Tested by an independent research team under the most demanding scientific methods, the Windstorm™ competed head-to-head for loudness against the most popular whistles in the world. Data derived by powering 4 test whistles at a constant pressure and strong effort prove its loudness.
How do the All-Weather Safety whistles make so much noise?
In the 1850s, Dr. Hermann von Helmholtz invented the Helmholtz Resonator, a devise that could capture sound waves. Through utilizing the Resonator, Helmholtz discovered that the size of the cavity affected the sound waves. To use a modern-day example, if one throws a tennis ball into a very large room, the ball will simply roll to a stop. Likewise, if the chamber is extremely small, then the tennis ball will be immobile. However, if the room is "just right," then the tennis ball will bounce off of the walls in the chamber, rebounding successfully. These principles of sound augmentation and amplification had never been applied to whistles or alarms until Dr. Howard Wright invented the Storm Whistle in 1988.
Do the All-Weather Safety whistles really work underwater and how does that work?
Yes, the All-Weather Safety whistles really do work underwater. As a matter of fact, Dr. Wright invented the All-Weather whistle for just that reason. When he was just fourteen years old, Dr. Wright built the first Storm whistle so that he and his friends could play "tag" underwater. In order to make a standard whistle work underwater, he encased the whistle in a plastic box. When the box filled with air,the whistle worked. After further testing, Dr. Wright proceeded to make the plastic box smaller and smaller until he discovered that the sound producing area of a whistle was a small 5mm x 5mm area over the whistle exit opening. With this information, Dr. Wright was able to create a prototype that would function while submerged.
Today, the Storm whistle is used by dive clubs to organize multidiver events and to signal a fellow diver while underwater. The ability of the Storm whistle to work while wet is even more important for boaters and rescue individuals, as standard whistles will not work if they have been submerged. This is why Navy Rescue boats, hundreds of thousands of boaters, and search and rescue teams across the world demand the power and waterproof nature of the Storm and Windstorm whistles.
How loud is the Storm whistle?
The loudness of the Storm whistle was measured in a soundproof chamber by a research team at the Institute for the Deaf in St. Louis Missouri. The Decibel reading varied between 118 and 120 dB. We compared the loudness of the Storm whistle, Windstorm whistle and a number of our competitors' whistles. The Storm whistle was nearly twice as loud as any other whistle. The Windstorm whistle was not quite as loud as the Storm, but was clearly louder than any of the competitors.
