A scuba pressure gauge is a piece of dive gear that you may not use every time you go underwater but definitely one that should be part of your regular scuba diving outfit. It is a safety measure, showing you the most essential information for when your dive computer fails.
Table of Contents
10 Best Dive SPGs
A scuba gauge usually has two faces, one showing your current depth while the other displays how much air is left in the pressure tank. With these two pieces of information, you can calculate how much time you can still spend underwater and when you should start the ascend, without needing to use the dive computer.
There are many different designs available, each with its own advantages and disadvantages, so we have ranked the top 10 scuba pressure gauge options for you. For more background knowledge on how to choose the best model for you, scroll down to our scuba gauges buying guide below.
1. Best Overall: Suunto Zoop 2 Gauge Dive Computer & Pressure Gauge
A SPG is often considered the back-up for a dive computer but why make things more complicated? Suunto understands that since they serve a similar purpose, these two pieces of dive equipment might as well be attached in the same place.
When you buy the Suunto Zoop 2 you get both a dive computer and a SPG in a single easy-to-read console. This makes having to switch between them a more natural movement.
(don't worry, button opens a new tab)
The Suunto Zoop comes highly recommended for beginners. This unit has both full decompression capabilities and a nitrox mode – everything you may need to start your scuba diving adventures.
What We Liked
- Dive computer SPG combo
- Suitable for beginners
- Durable materials
2. Most High-Tech: Aqua Lung I300C Computer 2 Gauge
If you want all the bells and whistles then the Aqua Lung I300C will peak your interest. It is a dive computer and SPG combination with Bluetooth technology.
The Bluetooth feature lets you connect to the DiverLog app where you can seamlessly upload your dive log. It also lets you share with other divers and post on social media.
(don't worry, button opens a new tab)
More technological perks include being able to switch between 3 different gases and 4 operating modes. The 4 operating modes are free dive, air, nitrox, gauge (with run timer).
What We Liked
- Dive computer SPG combo
- Bluetooth connectivity
- Compass included
3. Easiest to Read: Oceanic Pro Plus X Dive Computer with QD Hose
Don’t want to bother with manual readings on a SPG? Then go fully digital with the Oceanic Pro Plus X which was designed for ultimate visibility.
The long screen face allows for larger digits and a clearer sub-division of the screen. It is also color-coded for an even more intuitive and rapid check of all the vital information.
(don't worry, button opens a new tab)
This dive computer is suitable for both bright sunny days and night dives making it the ultimate choice for frequent divers. It comes complete with a QD hose.
What We Liked
- Very clear display
- Includes digital compass
- Color-coding
4. Best Modular Design: Mares Mission 2 Console Scuba Tank Pressure
This modular design has several attachment points, 2 on the sides and one at the top, so you can place wherever feels most comfortable to you. This is a modular design meaning that you can add the Mares Puck Computer to the same console if desired.
The soft yellow display has fluorescent lighting for better visibility in darker underwater conditions. Part of the display is color-coded in red as a reminder that the air pressure is running low.
(don't worry, button opens a new tab)
The elastomer material feels sturdy in your hands convincing you that it can take some bashes and scratches.
What We Liked
- Modular design
- Shock resistant casing
- Good warranty
5. Best Oil Filled Option: Cressi Console Leonardo with Computer & SPG
Get everything you need in a single console with this Cressi model including a scuba gauge, dive computer, and compass. It is based on the Leonardo 2 scuba dive console so fans of that model will be pleased with this one.
As always, Cressi perfectly combines style, durability, and functionality. Made from polycarbonate and desmopan materials this design stays lightweight yet extremely sturdy.
(don't worry, button opens a new tab)
If you are looking for something more than a simple SPG, this option pulls out all the stops. It is one of the most complete dive consoles you can buy.
What We Liked
- 3-in-1 console
- Durable and lightweight materials
- Good connection points
6. Best Design: Aqua Lung Submersible Pressure Gauge
If all you are looking for is a simple SPG then you might be interested in this design by Aqua Lung. Aqua Lung is a great brand if you are looking for simple yet functional and durable dive equipment.
This diving depth gauge is designed for better visibility in low light conditions. It is also better resistant to shocks thanks to its top of the line build.
(don't worry, button opens a new tab)
Diving gauges don’t have to be big investments as proven by this Aqua Lung model.
What We Liked
- Sleek design
- Luminescent in low light conditions
- Nitrox compatible
7. Best for Deep Dives: Scubapro In-Line Scuba Pressure and Depth Gauge
For accurate and valuable information, you want a dive gauge that shows both the tank pressure and diving depth. That is exactly what you get with this Scubapro 2-gauge in-line scuba diving gauge.
The top element measures depth and the lower element is the pressure gauge for the scuba tank. Together, these dive gauges provide you with what you need to know to further plan your ascend and descend.
(don't worry, button opens a new tab)
Available in both metric and imperial system version, the red zones makes readings extra clear. And if you look a little closer you will see that the depth interface also features a temperature gauge.
What We Liked
- Easy to read in-line design
- Good visibility
- Feature temperature gauge
8. Smallest Design: XS Scuba Pressure Gauge/Compass Combo
Divers that prefer to go analog overusing a dive computer will be happy with a dive pressure gauge that has a space for a compass, as well. This clever little design delivers on both with a small scuba diving compass (30° bezel markings and 10° face markings) already fitted on the flip side.
Both faces are luminescent for easier reading in dark dive conditions. The casings are also made with sturdy materials including chrome-plated glass brass and a rubber boot.
(don't worry, button opens a new tab)
Besides the compass, there is also a small water temperature gauge incorporated into the pressure gauge face. Both imperial and metric systems versions are available.
What We Liked
- Temperature gauge
- Pre-installed compass
- Strong materials
9. Best Compass Combo Design: Cressi Console CP2 Pressure Gauge & Compass
A great alternative to the XS Scuba model is this SPG and dive compass combination console by Cressi. It has the usual colorful SPG design that you expect from this Italian brand and a clear rotating bezel compass above it.
The compass bezel is organized into 30° increments while the inner face has a marking for every 10°. Both parts are protected by the signature polycarbonate Desman casing while still being a very lightweight design.
(don't worry, button opens a new tab)
What We Liked
- Very strong materials
- Colorful fluorescent display
- Lightweight
10. Best with Compass Included: Promate Mini Pressure and Depth Gauge
Get all three basic elements in a single console with this Promate mini scuba diving gauges set. It includes all three key elements. This is a good design option if you want a SPG that doesn’t take up much space. It is called mini for a reason.
It has a luminescent face and an oil-filled compass for better clarity. Everything you need without taking up much space.
(don't worry, button opens a new tab)
What We Liked
- Temperature indicator
- Pre-installed compass
- Strong materials
For a quick recap, here are our Top 3 Products:
- Suitable For Beginners
- Durable Materials
- Changeable battery
- Easy to Use
- 4 Operating Modes
- Bluetooth Connectivity
- Compass Included
- SPG Combination
- Very Clear Display
- Digital Compass
- Color Coding
- For Frequent Divers
Frequently Asked Questions about SPG
Knowing how much air you have left in the pressure tank is essential knowledge for any scuba diver. That is why every diver, whether professional or recreational, should carry a SPG with them during every dive.
There are many SPG types, some simpler and some with extra measuring devices like a temperature gauge, compass or depth gauge.
A SPG should be easy to read and there are several design elements that can help with this. Common elements that you would want are a fluorescent or luminescent display and clear large numbers and markings.
A nice extra is a display that color coordinates specific pressures. For example, red for only the lowest pressures or a different color for each section. We’ve answered some frequently asked questions about scuba pressure gauges to help you understand this piece of scuba gear even better.
What does SPG stand for in scuba diving?
SPG stands for a submersible pressure gauge. This instrument measures how much air is left in your tank so that you can calculate how much longer you can stay underwater.
Note that your breathing pattern affects the rate at which the oxygen reduces.
What is gauge pressure in scuba diving?
In diving, a distinction is made between gauge pressure and absolute pressure. Gauge pressure only includes the water pressure while absolute pressure includes both atmospheric and water pressure.
For most recreational and sport divers it is not necessary to factor in the atmospheric pressure.
Where is a scuba pressure gauge attached?
This piece of dive gear is connected to your pressure tank via a hose which means that a secure placement is important. There should be at least one loop or another type of attachment point on the console itself, one that you can attach to a bungee or clip.
Also, think about the length of the hose. It should be long enough that you can easily grab the console for a quick read but not too long that it could get you stuck on rocks or other underwater landscape elements.
Imperial vs Metric
Pressure gauges are available in two different unit systems; bars (imperial) and PSI (metric). It can be confusing to have to convert these figures in your head during a dive so always choose the unit measurements that you are most comfortable with.
Some divers, those that travel around the world looking for the best scuba diving locations, might want to have both options in their arsenal. Regions outside of the United States generally work with PSI so during group dives it might be clearer to all use the same scuba SPG unit.
