Shearwater Research Peregrine TX Air Integrated Color Dive Computer Review

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Quick Summary Box

Best For: Recreational and advanced recreational divers who want a large, easy-to-read color computer with wireless air integration, a digital compass, nitrox capability, and room to grow.

Key Strengths: Bright 2.2-inch color display, optional wireless air integration, gas-time-remaining information, tilt-compensated compass, simple two-button operation, rechargeable battery, vibration alerts, and support for as many as four transmitters.

Things to Consider: Air integration requires a compatible transmitter purchased separately unless you buy a package that includes one. The Peregrine TX is also larger than watch-style computers and does not provide the full trimix and CCR feature set of Shearwater’s higher-end technical models.

Bottom Line: The Peregrine TX is one of the strongest choices for recreational divers who want Shearwater’s readable interface and dependable dive-computer platform with the two features the original Peregrine lacked most: air integration and a built-in compass.

Table of Contents

1. Introduction

2. What Makes the Peregrine TX Different?

3. Display and Underwater Readability

4. Air Integration and Gas Management

5. Digital Compass

6. Controls and Ease of Use

7. Dive Modes and Decompression Features

8. Battery Life and Charging

9. Comfort, Size, and Durability

10. Who Should Buy the Peregrine TX?

11. Common Mistakes

12. Tips

13. Frequently Asked Questions

14. Related ScubaBlast Articles

15. Related Gear

16. Where to Buy

17. Conclusion

18. Call to Action

Introduction

A dive computer becomes one of the most important pieces of equipment you carry underwater. It tracks depth, time, decompression status, ascent information, and other data that directly affects how you manage a dive. Once you add wireless tank-pressure information and a compass, the computer becomes an even more useful center for your dive information.

The Shearwater Research Peregrine TX takes the easy-to-read design that made the original Peregrine popular and adds two major upgrades: wireless air integration and a three-axis, tilt-compensated digital compass. Shearwater positions it as a sport-diving computer, and that is exactly where it makes the most sense.

For a recreational diver who wants a serious computer without paying for technical-diving features that may never be used, the Peregrine TX hits an attractive middle ground. It is capable enough to grow with a diver into nitrox, multiple gases, decompression procedures, and sidemount, yet its everyday interface remains approachable.

What Makes the Peregrine TX Different?

The biggest difference between the Peregrine TX and the original Peregrine is right in the name: the TX model can receive wireless tank-pressure information from compatible transmitters. It also adds a digital compass. Those two features remove two of the biggest reasons a diver might have stepped up to a more expensive Shearwater model.

The Peregrine TX uses a 2.2-inch full-color LCD with 320 x 240 resolution. It is depth-rated to 120 meters/394 feet, supports Air, Nitrox, 3 Gas Nitrox, and Gauge modes, and can connect with as many as four transmitters. Shearwater also lists full sidemount support, Bluetooth connectivity, vibration alerts, upgradeable firmware, and a rechargeable lithium-ion battery rated for up to about 30 hours at medium brightness.

For most recreational divers, those specifications are more than enough. The real advantage is not having a long feature list. It is having the information you actually use presented in a clear way.

Display and Underwater Readability

The display is one of the Peregrine TX’s best features. Large numbers and strong color separation make important information easy to pick out at a glance. That matters in cold water, low visibility, night diving, or anytime you are concentrating on buoyancy, navigation, a wreck, or your buddy rather than staring at your wrist.

For Great Lakes diving in particular, readability can be a major advantage. Thick gloves, darker water, and task loading can make tiny watch-style screens less convenient. A larger rectangular display gives the Peregrine TX room to present depth, dive time, no-decompression information, gas data, and warnings without making the screen feel cramped.

The computer is not small enough to disappear on your wrist like an everyday watch, but that is part of its appeal. This is a dive computer first. If your priority is being able to read your information quickly underwater, the larger screen makes sense.

Air Integration and Gas Management

Air integration is the upgrade that makes the Peregrine TX especially attractive. Pair the computer with a compatible transmitter on your regulator first stage and tank pressure can be displayed directly on the computer. With the appropriate setup, the computer can also calculate gas time remaining.

That does not mean a diver should stop thinking about gas management. Air integration is a tool, not a substitute for checking pressure, knowing your turn pressure, monitoring your buddy, and following the gas plan established before the dive.

What it does exceptionally well is reduce the amount of information hunting you need to do. Instead of looking at your computer for depth and time and then reaching for a separate pressure gauge, key information can be viewed together. This is particularly convenient when wearing thick exposure protection or carrying a camera or light.

The Peregrine TX can connect with up to four transmitters. Most single-tank recreational divers will never need that many, but the capability makes the computer much more flexible for sidemount and other multi-cylinder configurations.

Shearwater’s Swift transmitter is the natural pairing. It uses a user-replaceable CR2 battery and incorporates a collision-avoidance system intended to improve reliability when multiple transmitters are operating nearby.

Digital Compass

The built-in three-axis, tilt-compensated compass is the second major reason to choose the TX over the original Peregrine. A digital compass is useful for simple out-and-back navigation, following a heading across a featureless bottom, working around a wreck, or confirming the direction back toward an exit point.

Tilt compensation makes the compass more forgiving because you do not have to hold the computer perfectly level for a useful heading. That is practical underwater, where maintaining perfect wrist position while swimming is unrealistic.

A digital compass should still be backed by good navigation habits. Pay attention to natural references, depth contours, current, shore direction, boat location, and your surroundings. The compass is most useful when it supports situational awareness rather than replacing it.

Controls and Ease of Use

Shearwater’s two-button interface is one of the reasons its computers have such a strong following. You do not need to memorize a complicated sequence of button presses for routine functions. Menus are designed to be readable and relatively straightforward.

That simplicity becomes more valuable underwater. Thick gloves can make small buttons and touch-sensitive controls frustrating. Physical buttons give you positive feedback, and the large screen makes it easier to see what changed after a press.

New owners should still spend time with the computer before the first serious dive. Set units, review gas settings, understand the warning displays, practice opening the compass, and learn where tank pressure and gas-time information appear. Familiarity on land reduces task loading underwater.

Dive Modes and Decompression Features

The Peregrine TX supports Air, Nitrox, 3 Gas Nitrox, and Gauge modes. It can be programmed with up to three nitrox gases from 1% to 100% oxygen and allows underwater gas switching. It also supports decompression diving and includes a decompression dive planner.

For a typical recreational diver using air or nitrox, the computer has plenty of capability. A diver who later takes advanced training can continue using the same computer rather than immediately replacing it.

However, the Peregrine TX should not be confused with Shearwater’s full technical platforms. Divers planning trimix or closed-circuit rebreather diving should compare it with models such as the Perdix line that are designed around those requirements.

One of the strengths of buying a computer with some extra capability is that you can grow into it. You do not need to use three-gas functionality on day one. You can start with normal recreational profiles and learn additional features as your training expands.

Battery Life and Charging

The Peregrine TX uses an internal rechargeable lithium-ion battery and wireless charging. Shearwater rates battery life at up to about 30 hours at medium brightness.

For normal recreational use, that means you should be able to complete multiple dives between charges. Still, charging should become part of your pre-dive routine. The night before a dive trip, check the computer battery along with your camera batteries, dive light, transmitter battery status, and other electronics.

The internal battery is factory replaceable. Some divers prefer a user-replaceable AA battery for remote expedition diving, but for everyday recreational diving, rechargeable operation is convenient.

Comfort, Size, and Durability

The Peregrine TX measures approximately 77 x 68 x 25 mm and weighs about 125 grams. It is substantial enough to be easy to see but still compact compared with older console-style computers.

The standard silicone strap works well for many divers, and the platform can also be used with alternate strap or shock-cord arrangements. When diving a thick wetsuit or drysuit, make sure the attachment is secure without being so tight that exposure-suit compression makes it uncomfortable at depth.

The ballistic nylon polymer case keeps weight reasonable while providing a purpose-built dive-computer housing. As with any computer, rinse it thoroughly in fresh water after saltwater or contaminated-water exposure, protect the screen from unnecessary impacts, and store it away from extreme heat.

Who Should Buy the Peregrine TX?

The Peregrine TX makes the most sense for the recreational diver who values readability and wants air integration without moving all the way into a premium technical computer.

It is especially appealing for cold-water divers, wreck divers, nitrox users, divers who appreciate a larger display, photographers who want important information consolidated on one wrist, and divers who expect their training to progress beyond basic open water.

If you already own the original Peregrine and are satisfied using a separate SPG and compass, upgrading may not be necessary. But if air integration and an integrated compass are features you have been wishing your Peregrine had, the TX directly addresses those limitations.

Common Mistakes

• Buying the computer but forgetting that a transmitter is required for wireless tank-pressure information.

• Pairing a transmitter and then failing to verify that the displayed pressure matches the actual cylinder pressure before entering the water.

• Treating gas-time-remaining calculations as permission to stay down until the number approaches zero.

• Entering the water without confirming the correct breathing gas and oxygen percentage.

• Using the compass for the first time underwater instead of practicing headings and reciprocal navigation on land.

• Waiting until the morning of a dive to discover that the computer needs charging.

Tips

• Set up the computer at home and work through every menu you expect to use underwater.

• Before each dive, confirm battery level, gas mixture, transmitter connection, tank pressure, and units.

• Keep your traditional gas-management habits even when using air integration.

• Use vibration alerts as an additional attention-getter, not as a replacement for regularly checking the display.

• Practice the digital compass in a pool or easy open-water environment before depending on it for a more demanding wreck or low-visibility dive.

• Keep the screen protector in good condition, especially if you frequently dive from boats or around wrecks where equipment gets bumped.

Frequently Asked Questions

Does the Peregrine TX include air integration?

Yes. The Peregrine TX has wireless air-integration capability, but you need a compatible transmitter to send cylinder-pressure information to the computer.

How many transmitters can the Peregrine TX use?

It can connect with up to four transmitters. That is more than a normal single-cylinder recreational diver needs, but it provides flexibility for sidemount and multi-cylinder configurations.

Does the Peregrine TX have a compass?

Yes. It includes a three-axis, tilt-compensated digital compass, one of the major upgrades over the original Peregrine.

Can I use nitrox with the Peregrine TX?

Yes. It supports Nitrox and 3 Gas Nitrox modes and can be programmed with up to three gases containing 1% to 100% oxygen.

Is the Peregrine TX suitable for decompression diving?

Yes. Shearwater states that it supports decompression diving and includes a decompression dive planner. Proper training is still essential before conducting planned decompression dives.

How long does the battery last?

Shearwater rates the rechargeable battery for up to about 30 hours at medium screen brightness. Actual runtime will depend on settings and use.

Is the Peregrine TX good for beginners?

Yes, particularly for a beginner who wants a computer that will remain useful as skills and certifications grow. The display and two-button interface are approachable, while the advanced features can be learned gradually.

Is it better than a watch-style dive computer?

That depends on your priorities. A watch-style computer is smaller and easier to wear every day. The Peregrine TX provides a much larger display that many divers find easier to read underwater, especially with thick exposure protection or reduced visibility.

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Where to Buy

Conclusion

The Shearwater Peregrine TX is a well-balanced dive computer for recreational divers who want excellent readability, simple controls, air integration, and navigation without buying a computer centered on advanced trimix or CCR diving.

Its strongest advantage is how naturally the features work together. The large color screen gives the computer room to display useful information clearly. Wireless air integration brings cylinder pressure and gas information onto the same display. The compass adds practical underwater navigation. Rechargeable power and Bluetooth firmware support make day-to-day ownership convenient.

For a diver building a dependable long-term equipment setup, the Peregrine TX is the kind of computer that can serve from ordinary air dives through nitrox, advanced recreational diving, and some more demanding configurations as training progresses. It is not the cheapest computer available, but its combination of usability and capability makes it easy to justify for divers who expect to stay active in the sport.

Call to Action

If you are building or upgrading your scuba setup, compare the Shearwater Peregrine TX with the rest of the gear reviewed on ScubaBlast. Choose equipment that is easy to understand, comfortable to use, and appropriate for your training and diving environment. A dive computer should help you stay informed underwater without becoming another piece of equipment you have to fight with.

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