All divers must be trained in using hand signals underwater as a form of communication within the scuba diving buddy system. Hand signals are effective, but if you need to be noticed immediately and your dive buddy is looking in the other direction, you should also have an underwater signaling device.

It can also be called an underwater sound device and it can be a lifesaving safety signaling system in the event of a dive emergency. A scuba signaling device will emit a sound that can easily travel through the water for your dive buddy to hear and be alerted to any event.

There are a lot of different types of underwater signaling devices. Some designs may be electronic, others manual, and some even have a light signal too. It can be hard to choose which scuba noisemaker would be best. With our guide, you will have all the information you need to find a top rated underwater signaling device, so that you can always dive safely.

How To Choose An Underwater Signaling Device – Buying Guide


Scuba diving is safe, but you can take steps to ensure you are always prepared. In the event of an emergency, time is of the essence, and an underwater sound device can get you connected with your dive buddy faster, so that you can start communicating the issue.

For a diver’s safety, you should look for a top rated underwater sounding device to add to your dive safety gear. However, there are different designs and different features that you should be aware of before you make a purchase. These features will help you find the best underwater sounding device to add to your ultimate dive checklist for all your dive trips.

Intended Use

An underwater sound device can be used in both emergency and non-emergency situations. The intended use is to simply get the attention of your dive buddy or fellow divers when they can’t see you to communicate with hand signals.

In the event of an emergency, a scuba noisemaker can be a lifesaving device. By using safety signaling you can get the attention of your dive buddy faster, which means immediate attention to the emergency situation.

A top rated underwater sounding device should be small and easily portable. This will ensure that you can take your scuba signaling device on every dive trip to ensure you and other divers stay safe.


There are a variety of sizes of scuba noisemakers and it will depend on the specific design you have chosen to use. Universally, all scuba signaling devices should be handheld, which ensures that they are easily portable.

However, if you have chosen an electronic underwater sound device, it may be slightly larger than other models because of the additional parts. Some designs will be longer in length because they also have a light feature that can be used to further attract your dive buddy’s attention.

Other models are very small and can actually be worn around the wrist and are used with the push of a button or to tap on the side of your tank. You can check underwater signaling device reviews to see what other divers have said about the products size. However, no matter which device you choose, you shouldn’t have to worry about them being too large.


The weight will be related to the size of the safety signaling device and as we’ve stated, size can vary depending on the design. Like size, all scuba noisemakers should be handheld and lightweight.

Again, the difference can be down to whether you have an electronic underwater sound device or a non-electronic design. Electronic scuba signaling devices will have a few more parts that can make them heavier than non-electronic designs.

However, all underwater sound devices should be light enough that they don’t add any bulk to your load. Their lightweight designs ensure that they don’t add any unnecessary weight to your gear.

These devices are designed with safety in mind. Most designs are lightweight to ensure that there is not a reason for a diver to not carry one on a trip.



Q: Should I use a light or sound signaling device?


Most divers will use a sound safety signaling device over a light signaling device. This is because a sound signaling device can get the attention of your dive buddy while their back is turned to you. A light signaling device relies on your dive buddy to look in your general direction to see a light signal.

Most scuba noisemakers can emit a small but audible sound from several feet away, which can be a more reliable alert to your dive buddy. If you think about your hand signals, you can wave your arms underwater, but your dive buddy may never see. The movement isn’t enough to grab their attention. The same can go for a light signal. A dive buddy may not see the light and be alerted to an emergency.

However, there are some safety signaling devices that use both light and sound. These devices have the added feature of a light to get your dive buddy’s attention but use the security of sound to emit a safety signal further.

Q: When should I carry a signaling device?


Every dive trip. If you think about how hard it can be to communicate underwater, you should always have an underwater sound device for emergencies. It is safe to scuba dive, but you are in an uncontrolled environment and underwater navigation can be difficult. Unexpected situations can happen, but you can prepare for the worst.

A scuba noisemaker will ensure that you are always prepared for your dive. The devices are small and lightweight, which means they can easily be added to your gear and carried with divers on every trip they take.

Globo Surf Overview

Whether you are on your first scuba dive or on your hundreth trip, safety is always important. You should always be prepared and a top rated underwater sounding device can ensure that you are always in communication with a dive buddy or other divers.

There are a lot of different designs for you to choose from, but if you know exactly what you want or need, you can find the best underwater signaling device to take with you on every trip.

More Scuba Reviews:

Do you own one of the underwater signaling devices that made it onto our list? Let us know how it has worked for your scuba diving safety needs in the comments section below.

Globo Surf Underwater Signaling Devices Reviews

; ; ;
Rated 5/5 based on 1 customer reviews
5 5 1
This is a very helpful article. Thank you for all the info.

Review Title
Review Content

Globo Surf
My name is David Hamburg. I am an avid water sports fan who enjoys paddle boarding, surfing, scuba diving, and kite surfing. Anything with a board or chance I can get in the water I love! I am such a big fan I decided to start this website to review all my favorite products and some others. Hope you enjoy!