It can be quite difficult to get attention both on the surface, and while diving. Get one of our noise makers to get the attention of either the boat crew or your dive buddy! Definitely a good piece of equipment to have.
Pointers are commonly used by knocking on the cylinder underwater, and also to point out the sea critters to your buddy who is usable to spot it. some divers prefer a louder knock, and they go for the Stainless Steel rattlers. Rattlers also produce a unique sound underwater, so your buddy knows it is you.
Air Horns or Underwater Divers Alarm connects to the inflator hose, and usually creates a really loud blast on the surface, that is good to get the attention of the boat. Some Underwater Divers Alarm works only underwater with a distinct quack. These devices work by using your gas!