Dive computers can give you all the information you need when you are diving, but there is still a chance of something going wrong with them, such as a computer malfunction or a dead battery. Many professional divers will take a scuba gauge diving with them as a backup. A scuba gauge will tell you two things. Firstly, it tells you how much air you have left in your tank, while the second gauge displays your current depth. This is crucial to your safety underwater.

Getting the best scuba gauges will ensure that your next dive will be safe and that your equipment will last. The best scuba gauges are easy to use and read. They have almost no chance of failing and are often used to do quick checks when you are in the water.

We scoured the web to find the five best diving gauges on the market. Our buying guide tells you everything you need to know before you purchase your ideal gauge. Here are our top 10 gauges of 2021.

How To Choose A Scuba Gauge – Buying Guide


When you come to choose your scuba gauge, you need to choose the unit of measurement for the gauge. The unit of measurement may differ by region, but you may want to find a gauge with a measurement which is from the place you learned to dive or the place you grew up in. Many countries, including the US, use the Imperial system, while many other counties use the Metric System. Choose the system which you find easiest to understand, though if you are diving with other people, then it may be beneficial to use the system which is used in the country you are diving in to eliminate any confusion which could arise.


When you are diving, you do not want to be encumbered by a lot of heavy gear. You will already have a wetsuit and a mask equipped, but you may also have other accessories such as a knife or dive computer. When you are looking for a scuba gauge, it is important to find one which has the functionality you need, but it can be equally important to find a game which is small and light. Smaller gauges also have the added benefit of being more transportable.

Temperature Indicator

Many scuba gauges offer additional functionality. One thing to look at when you are buying a gauge is a temperature indicator. This is handy to know if there are any sudden drops in temperature, and when you get into the water, you can ensure that you have the correct clothing on; such as thick enough dive gloves.

Maximum Depth Needle

A maximum depth needle is also a piece of added functionality which can be beneficial. When you are dicing, the needle will stop at your lowest depth and stay there. This is helpful in tracking your dive, and especially so when you are attempting multi-level dives.

Color Coding And Luminescent Dials

When you are diving, you want to be able to see your gauge in any environment, and you also want to be able to see at a glance the depth you are at. The gauge should be easy to read. Look for dials which are luminescent. This is especially helpful when you get into deeper and darker waters. A pressure gauge can have color coding for when your oxygen is low, and a depth gauge can have color-coded spots to mark out safety stops in deep dives.


You want to be able to take your gauge with you when you are under the water, and you can often fit it in a pocket or bag, but if your gauge has eyelets, then it will be easier to carry. If you are able to clip your gauge to your wetsuit or a belt, then you can carry it safely and securely. Having it attached to you means that you have less risk of the gauge becoming damaged, or damaging anything else if it is being pulled along with you.



Q: What Is A Scuba Gauge?


A scuba gauge allows you to monitor your depth, your air supply, and, often, both. Most scuba gauges are equipped with two gauges; one to read the depth you are at and the other to read the remaining oxygen supply in your tank. Both will generally be in the form of dials with numbers around the outside.

As you dive deeper, your depth gauge will show you how deep you are in the water. A needle will move around the dial and will point to a number corresponding to the depth you are at. This helps you to track your depth on your dive. The dials are also often color coded to show you when you are at a dangerous depth or coded to help you to track when you should be performing safety checks.

The pressure gauge works in the same way. It will be attached to your air tank and will tell you how much air is left in your tank. As the air is depleted, the needle will move around the dial and show you how much air is left. The gauge will often have a color coding on it to show you when the air supply is almost gone.

Q: Why Do I Need a Scuba Gauge?


A scuba gauge is a vital piece of scuba equipment. You can get by without one, but if you do dive without a gauge, then you run the risk of something bad happening, and your dive will become dangerous. If you have a gauge which tracks your depth and your air pressure, then you have a lot of information which you can incorporate into your dive to keep you safe.

The amount of air in your tank is critical. If you go under the water without knowing how much air you have left in your tank, then you run the risk of running out of air when you are still under the water. If you know exactly how much air is left in your tank, then you can plan your dive better and be back on dry land when you have only a little air in your tank. You do not want to be deep under the water when your air runs out.

The depth gauge will tell you how deep you are in the water. This information is useful if you are tracking your dives. If you want to go deeper and deeper ever dive, the knowing the exact depth of your dive will allow you to do that. It is also useful for performing your safety checks. You know the exact depth of your dive, and you know exactly when to release your dive markers. It can also help you to protect your equipment. If your scuba mask is only rated for a certain depth, then it helps you to not go below that depth and run the risk of damaging your equipment.

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Having an analog display of your diving depth as well as your remaining air could just save your life. While some people prefer the digital reading of a dive computer is important to dive with gauges as well for a backup reading. Opting for the best scuba gauge will ensure that you get an accurate reading and leave you to enjoy your dive.

Knowing your exact depth and remaining air really could save your life, and an analog gauge gives you the best way of doing that. They are less likely to fail than a digital reading, and they last a lot longer. Our buying guide sets you up to but the ideal scuba gauge. Scuba gauges are simple pieces of equipment to use, but knowing a little about how they work is a benefit when it comes to knowing exactly what you want and need.

Take the time to buy the scuba gauge which is right for you, and remember that the gauge could save your life.

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Do you have a scuba gauge on our list? Let us know how it works for you in the comment section below.

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!