Best Diving Air Decompression Limit Monitors of 2025

Luke Dobson Avatar
Luke Dobson
Last Updated: 6 Feb 2025

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Diving can be a thrilling experience, but it comes with its own set of risks. One of the major risks associated with diving is decompression sickness, which is caused by ascending too quickly and not allowing the body to adjust to the change in pressure. Diving air decompression limit monitors can help divers avoid this risk by monitoring the amount of time they spend at different depths and alerting them when it's time to slow down or stop their ascent. These monitors can provide invaluable information to divers and help them make informed decisions about their dives.

At a Glance: Our Top Picks

Cressi Leonardo Scuba Diving Computer with LCD Cover #TOP 1
Cressi Leonardo Scuba Diving Computer with LCD
ftb score rating icon 9.9
Aqua Lung I100 Unisex Dive Computer with Multi-Mode Functions Cover #TOP 2
Aqua Lung I100 Unisex Dive Computer with Multi-Mode Functions
ftb score rating icon 9.8
Aqua Lung i200C Dive Computer with Bluetooth Cover #TOP 3
Aqua Lung i200C Dive Computer with Bluetooth
ftb score rating icon 9.6

Top 10 Diving Air Decompression Limit Monitors

#TOP 1

Cressi Leonardo Scuba Diving Computer with LCD

KS770050
Black/Grey
standard size
Cressi Leonardo Scuba Diving Computer with LCD Cover
Cressi Leonardo Scuba Diving Computer,Black/Grey

The Cressi Leonardo Computer is an excellent choice for divers looking for versatility and reliability. With air, nitrox, and gauge modes, you can easily switch according to your diving needs. The high-definition LCD screen provides clear visibility, ensuring you can read important data effortlessly. Its RGBM algorithm offers accurate decompression calculations, enhancing your safety underwater. Additionally, the versatile dive memory allows you to log up to 60 dives or 70 hours of diving time, helping you keep track of your adventures.

What We Like
Multiple dive modes
High-definition screen
Accurate decompression calculations
Extensive dive memory
#TOP 2

Aqua Lung I100 Unisex Dive Computer with Multi-Mode Functions

NS13811700
Yellow
Standard Size
Aqua Lung I100 Unisex Dive Computer with Multi-Mode Functions Cover
Aqualung I100 Unisex Dive Computer, Intuitive one-button navigation, Four operating modes, Altitude adjustment, Aqua Lung Diving Watch ideal for scuba diving

The Aqua Lung I100 Dive Computer offers an intuitive one-button navigation system, making it easy for you to operate while diving. With four operating modes, including Air, Nitrox, and Free Dive, you can customise your diving experience to suit your needs. The water activation feature ensures a seamless start to your dive, eliminating worries about manually activating the device. Additionally, the user-updatable software allows you to access the latest features and upgrades via Bluetooth, keeping your dive computer current and efficient.

What We Like
Multiple dive modes available
Easy one-button navigation
Seamless water activation
User-friendly software updates
#TOP 3

Aqua Lung i200C Dive Computer with Bluetooth

NS155123
Petrol
Standard Size
Aqua Lung i200C Dive Computer with Bluetooth Cover
Aqualung i200C - Dive computer, Bluetooth, Four operating modes, Intuitive navigation, Aqua Lung Diving Watch ideal for scuba diving

The Aqua Lung i200C offers four operating modes, allowing you to choose between Air, Nitrox, Gauge dive modes, and Free Dive. This flexibility ensures that you can dive according to your preferences and experiences. The History Mode is particularly useful, as it records your total dives, maximum depth, total dive hours, and lowest temperature, helping you track your progress. With user-updatable software, you benefit from the latest features and upgrades via Bluetooth, while Bluetooth connectivity enables you to share your dive stats and memories effortlessly on social media through the DiverLog+ app.

What We Like
Multiple dive modes available
Tracks dive history easily
User-updatable software
Bluetooth connectivity for sharing
#TOP 4

Mares Computer Quad Ci Diving Monitor

Mares
414148BKSI
Black/Silver
Mares Computer Quad Ci Diving Monitor Cover
Mares Computer Quad Ci

The Mares Quad Ci is an advanced diving computer designed to enhance your underwater experience. It features a customisable Bühlmann ZH-L16C algorithm that allows you to adjust gradient factors, making your dives safer and more efficient. The fully tiltable digital socket provides easy access to cylinder data and pressure levels, displayed in a clear, colour-coded format. Additionally, the logbook memory stores up to 100 hours of dive profiles, helping you track your performance over time. With Bluetooth connectivity, you can connect directly to your devices for easy access to your diving data.

What We Like
Customisable gradient factors
Clear colour-coded displays
100-hour dive log memory
Bluetooth connectivity
Intuitive user interface
#TOP 5

Mares Smart Diving Computer with Freediving Mode

Mares
414129-BKBK
Black / Black
standard size
Mares Smart Diving Computer with Freediving Mode Cover
Mares Smart Diving Computer - Black/Black

The Mares Smart Diving Computer is designed for both freediving and nitrox diving. Its freediving mode includes dedicated alarms, ensuring you stay safe during your underwater adventures. You can also enjoy the full features of a nitrox dive computer, complete with two gas capability, which allows you to switch between different gas mixes easily. Additionally, the user-replaceable capability means you can maintain your device with minimal hassle, giving you peace of mind while you focus on your diving experience.

What We Like
Freediving mode with alarms
Nitrox dive computer features
Two gas capability
User-replaceable design
#TOP 6

Mares Smart Apnea Diving Computer for Spear Fishing

Mares
424153
Black / Blue
One Size
Mares Smart Apnea Diving Computer for Spear Fishing Cover
Mares Diving Computer, Black/Blue, One Size

The Mares Smart Apnea Computer is designed specifically for spear fishing and diving, making it an essential tool for enthusiasts. Its user-friendly menu, improved through enhanced software and buttons, ensures that you can easily navigate its features. You can also enjoy the benefit of customisable alarms, which can be adjusted to help prevent dehydration while you’re underwater. This thoughtful design allows you to focus on your diving experience without unnecessary distractions.

What We Like
Specially designed for spear fishing
User-friendly menu and navigation
Customisable alarms for safety
Improved software for ease of use
#TOP 7

SUUNTO Dive Bungee Adapter Set for Zoop Novo

SS021886000
Black
One Size
SUUNTO Dive Bungee Adapter Set for Zoop Novo Cover
SUUNTO Unisex Suunto Dive Zoop Novo vyper Novo Bungee Adapter Set, Black, Plain EU

The SUUNTO Bungee Adapter Set is designed to enhance your diving experience with your Suunto Zoop Novo and Vyper Novo. This complete set includes an elastic band, bungee adapter, screws, and spring pins, making it easy to attach securely. The flexible elastic band ensures comfort while you dive, allowing you to focus on the adventure ahead. Additionally, the individually adjustable elastic strap provides an optimal fit, ensuring that your equipment stays in place during your underwater explorations.

What We Like
Comfortable to wear
Easy to attach securely
Individually adjustable strap
Enhances diving experience
#TOP 8

Cressi Mini SPG with Hose, Black

EKZ 760300
Black
Cressi Mini SPG with Hose, Black Cover
Cressi Mini Spg W/Hose W/Out Boot, BAR, Black

The Cressi Mini SPG is a reliable sub manometer with whip, perfect for monitoring your diving air decompression limits. As an original part from a family-owned company that has specialised in aquatic sports since 1946, you can trust its quality. This product serves as a spare part for various Cressi instruments, ensuring compatibility and ease of use. Its optimal size and weight make it convenient to carry, allowing you to focus on your diving experience without unnecessary bulk.

What We Like
Reliable and trusted brand
Compatible with Cressi instruments
Compact and lightweight design
Useful for monitoring decompression

ProDive Battery Kit for Suunto D4 Dive Computer

ProDive Battery Kit for Suunto D4 Dive Computer Cover
ProDive Battery Kit for Suunto D4 D4i Dive Computer, Spare Service Set

The ProDive Suunto D4 Battery Kit is essential for keeping your dive computer fully operational. It includes a high-quality CR2450 lithium battery, ensuring reliable power during your underwater adventures. The kit also comes with an o-ring and silicone grease, which help maintain the integrity of your device. You will appreciate the easy installation process, allowing you to change the battery yourself without needing professional help, saving you both time and money.

What We Like
Essential for dive computer functionality
Easy to install yourself
Includes quality battery and accessories
Cost-effective solution
#TOP 10

Cressi Leonardo Dive Computer Lens Shield

KZ770098
Transparent
standard size
Cressi Leonardo Dive Computer Lens Shield Cover
Cressi Leonardo Protective Lens/Screen Dive Computer - Transparent

The Cressi Leonardo Lens Shield is designed to protect your dive computer's display. Made with premium high-quality materials, it ensures durability and longevity, providing you with peace of mind during your dives. The easy installation process means you can quickly set it up on your Newton dive computer, allowing you to focus on your diving experience without hassle. This protective shield not only safeguards your device but also keeps the display clear for easy readability underwater.

What We Like
High-quality materials
Easy to install
Protects display
Enhances readability
Buying Guide Image
Editor's Notes

During our diving air decompression limit monitor research, we found 90 diving air decompression limit monitor products and shortlisted 10 quality products. We collected and analyzed 15,860 customer reviews through our big data system to write the diving air decompression limit monitors list. We found that most customers choose diving air decompression limit monitors with an average price of £74.07.

The diving air decompression limit monitors are available for purchase. We have researched hundreds of brands and picked the top brands of diving air decompression limit monitors, including CRESSI, Aqua Lung Sport, Mares, SUUNTO, ProDive good to have on hand.

Written by
Luke Dobson Avatar

Luke is a runner, a climber, hiker, hunter, and a lot more. Luke Dobson is Celtic-born and has lived most of his life in Scotland. However, his sporting endeavours have taken him to several countries around Europe. He serves as a tour guide for countless companies and owns a couple of gyms and recreational centres in Scotland. Luke Dobson is proficient in 7 different languages. He maintains many sport article columns where he shares his wealth of experience in the sport industry.