Technical Dive Computers — Multi-Gas, Multi-Mode, Built for Depth

A technical dive computer solves a fundamentally different problem than a recreational one. Recreational computers assume a single gas, a no-decompression profile, and a direct ascent available at any point. Technical diving discards all three assumptions: multiple gas mixes switched at planned depths, mandatory decompression obligations, trimix and helium in the breathing loop, closed-circuit rebreather setpoints, and dive plans where the surface is genuinely unavailable for hours. The computer has to track all of it, present it legibly at depth in poor visibility, and remain reliable when a miscalculation has consequences.

This collection brings together the technical-capable computers from Suunto, Scubapro, and Apeks — wrist units, console configurations, transmitters, and accessories. All are multi-gas capable, all support decompression planning, and all are built for divers whose profiles extend past recreational limits. At DiveCatalog.com, we carry these as an authorized dealer for every brand represented.

The Technical Dive Computer Range

Apeks DSX — The Technical Flagship

The DSX is Apeks' purpose-built technical dive computer, designed for serious technical divers and enthusiasts who want the most capable instrument available. Built to withstand harsh underwater conditions while delivering accurate, reliable data across deep wreck penetration and cave systems alike, with customizable dive modes and advanced decompression algorithms. Available with an integrated O2 analyzer for verifying gas mixes before the dive rather than trusting a fill station label.

Wireless Bluetooth Smart connectivity syncs dive data with the DiverLog+ app on iOS and Android — remote control of computer settings, dive log and profile viewing, location and note tagging, electronic buddy and instructor log signatures, certification and medical record storage, digital gear bag tracking, and firmware updates pushed straight to the computer over Bluetooth. Data synchronizes across DiverLog Desktop, the DiverLog+ app, and DiveCloud backup.

The Apeks Transmitter (O2 Clean) pairs permanently with the DSX for hoseless gas pressure transmission — real-time pressure and remaining dive time without a high-pressure hose, with user-changeable batteries and Nitrox compatibility up to 100% oxygen.

Scubapro G2 Family — The Galileo Successor

The G2 Tek Wrist Unit is the most technically focused member of the family. It runs the ZH-L16 Gradient Factor algorithm and supports 21–100% Nitrox and Trimix across eight gases, with CCR, Freediving, Gauge, and Scuba modes. Depth rated to 120m, with a rechargeable battery delivering up to 50 hours per charge and 485 MB of dive log memory. The full-color display uses configurable screens and three-button control, with a tilt-compensated built-in compass for navigation. Bluetooth and USB connectivity handle data transfer and configuration. Bungee straps included.

The G2 Wrist Dive Computer carries the Galileo's reputation for the most intuitive menu structure in diving into a full-color platform — four selectable color screens, the same three-button control, and mode support spanning open water, freediving, CCR, and sidemount. Available as a complete air-integration package with transmitter included.

The G2 Console (G2C) shares the wrist G2's feature set in a portrait-shaped, cell-phone-style screen with a direct tank connection replacing hoseless transmission. Multi-gas planning, extensive screen customization, and ultra-reliable air pressure monitoring, available with Quick Disconnect. The most customizable console computer in the lineup.

G2 accessories include the Aladin Retractor Clip (removes the strap and clips the unit to a standard D-ring retractor), adhesive screen guards for the Galileo series, and colored bezels in yellow and turquoise.

Suunto EON Series — Durability and Customization

The EON Steel is built for divers who demand the most from their equipment — extremely durable construction, a wide-angle BrightSee™ color screen, and multiple gas support for advanced diving. Customizable features and display views, tested in the toughest diving conditions. Available with boot and USB.

The EON Core delivers the same customization philosophy in a lighter, more compact body (154g / 5.43oz) with a reinforced composite case and mineral crystal glass. Large digits on a color display keep key data readable at depth, backed by wireless connectivity, a digital compass, wireless tank pressure support, a rechargeable battery, and updatable software. Available as the standalone computer, bundled with transmitter and USB, or as a complete package with USB cable, bungee mount, and POD.

Key Technical Computer Technologies

• Gradient Factors (ZH-L16 GF): Lets the diver set personal conservatism at both the first stop and the surface, rather than accepting a fixed manufacturer profile — essential when dive plans, thermal exposure, and personal risk tolerance vary between divers and dives.
• Multi-Gas and Trimix Support: Technical computers track multiple breathing mixes and handle switches at planned depths. The G2 Tek supports eight gases spanning 21–100% Nitrox and Trimix; helium content fundamentally changes decompression obligation, and a recreational computer cannot model it.
• CCR Mode: Closed-circuit rebreather support requires tracking oxygen partial pressure setpoints rather than assuming a fixed gas mix. Both the G2 Tek and G2 support CCR modes.
• Hoseless Air Integration: Transmitters thread into a high-pressure port and send tank pressure wirelessly — removing the high-pressure hose entirely, reducing entanglement risk and streamlining the rig.
• Integrated O2 Analysis: The DSX with O2 Analyzer allows gas mix verification before the dive rather than trusting a fill station tag — a meaningful safety step where an incorrect mix has serious consequences at depth.

Choosing Your Technical Dive Computer

Why Buy Technical Dive Computers from DiveCatalog.com?

• Authorized dealer for Apeks, Scubapro, and Suunto — genuine products, full manufacturer warranty
• Complete configurations — wrist units, consoles, transmitters, and accessories in one place
• Expert advice — our team can help you match a computer to your certification level, gas plan, and diving environment
• Fast shipping — in-stock items ship within one business day
• Financing available — for premium technical computer systems
• Rewards program — earn points on every purchase

Frequently Asked Questions

What actually makes a dive computer “technical”?

Three capabilities separate technical computers from recreational ones: support for multiple gas mixes with planned switches at depth, the ability to calculate and display mandatory decompression obligations rather than simply warning you to ascend, and support for helium-based mixes (trimix) and closed-circuit rebreather setpoints. A recreational computer assumes one gas and a no-stop profile, and cannot model what technical diving requires.

What are Gradient Factors and why do they matter?

Gradient Factors are two values that let you tune how conservative your decompression profile is — one governing the depth of your first stop, the other governing surfacing. Rather than accepting a manufacturer's fixed conservatism setting, you set your own based on your fitness, thermal exposure, dive profile, and personal risk tolerance. It's a standard expectation in technical diving and is supported on the Scubapro G2 Tek via the ZH-L16 GF algorithm.

Do I need trimix support if I only dive nitrox?

No. If your diving stays within nitrox mixes, a multi-gas nitrox-capable computer covers you. Trimix support matters once helium enters the breathing mix — typically on dives past roughly 40–50m where nitrogen narcosis and oxygen toxicity both become limiting factors. Buying trimix capability ahead of the training is reasonable if you plan to progress, but it isn't required for nitrox-only diving.

What is CCR mode?

Closed-circuit rebreather mode changes how the computer models your breathing gas. On open circuit, the computer assumes a fixed mix. On a rebreather, oxygen partial pressure is actively maintained at a setpoint, so the effective mix changes continuously with depth. CCR mode tracks setpoints rather than a fixed mix — without it, a computer cannot produce a valid decompression profile for rebreather diving.

Why would I choose a console over a wrist computer?

Console configurations keep pressure, depth, and computer data grouped on a single hose-mounted unit, which some divers prefer for consistency of habit and because a console is harder to lose. Wrist units offer a cleaner rig profile and are generally easier to read without repositioning. The Scubapro G2 Console gives you the G2 feature set in console form with a direct tank connection.

Do transmitters come with the computer?

It depends on the configuration. Some listings bundle a transmitter or POD — the Scubapro G2 Complete Air-Integration package and the Suunto EON Core with Transmitter, for example. Standalone wrist units such as the G2 Tek are sold without one. Check the specific product listing, or contact us and we'll confirm what's included.

Browse the full technical dive computer collection above and reach out if you'd like help matching a computer and transmitter configuration to your certification level and dive planning.