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Suunto DX Dive Computer

by Suunto

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Product Description



The Suunto DX, built on the award-winning Suunto D9tx, is the ultimate tool for open circuit and rebreather divers. It’s the very first of its kind to feature CCR compatibility. The premium design and materials, combined with the new superior Suunto Fused™ RGBM, make it the must-have instrument for your dive missions and everyday adventures. Are you ready to conquer new territory?

What's in the Box?

Suunto DX Black with titanium bracelet, D-series USB cable, safety leaflet, quick guide, legal leaflet with warranty information, and Suunto logo sticker

Key Features

For Rebreather Diving:

  • A setpoint, non-monitoring dive computer with dedicated CCR mode
  • Configure up to 3 different diluents
  • Adjustable high and low setpoints, as well as custom setpoint during dive
  • Automatic setpoints switching at specified depths
  • Possibility to switch to open circuit mode in case of bailout

For All Diving:

  • New, advanced Suunto Fused™ RGBM for CCR, technical and recreational diving
  • Trimix support including helium and oxygen
  • Gas switching between up to eight gases
  • 3D tilt-compensated digital compass
  • Five modes: CCR, air, mixed gas, gauge, and off
  • Optional wireless air integration
  • Built-in dive planner
  • Detailed graphical logs and dive data on your computer using Suunto DM5 software

For Everyday Adventures:

  • Stunning, compact design
  • Hard-wearing premium materials: titanium case and scratch-resistant sapphire crystal glass
  • Optional titanium bracelet

Measurements: 46.8  x  46.7  x  17.3  mm
Weight: 182 g
Measurements: 1.84  x  1.84 x  0.68 "
Weight: 6.42 oz
Bezel material: Titanium
Lens material: Sapphire crystal
Case material: Titanium
Strap material: Titanium
Declination correction: Yes




Bezel material: Titanium
Lens material: Sapphire crystal
Case material: Titanium
Strap material: Titanium
Weight 182 g
Water resistance 200 m (ISO 6425, EN 13319)
Battery life in time mode 2 years
Battery life 100 dives/year 1.5 years
Battery type CR 2450
Time, date   
Alarm clock 1 daily alarm
Dual time   
Stopwatch timer   
UI languages EN
Backlight electro-luminescent
Configurable backlight duration: off, 5, 10, 20, 30, 60 s
Display type matrix
Display resolution 49 x 22
Battery indicator low battery indicator
Metric and imperial units   



Data transfer USB cable
Connectivity (between devices) inductive
Compatible with DM5   
Compatible with Movescount with DM5



Digital compass   
Tilt compensation up to 45°
Direction scale degrees
Needle compass rose
Bearing lock with orienting indicator   
Compass accuracy
Compass resolution


Physical Specifications

Operating temperature 0° C to +40° C / +32° F to +104° F
Storage temperature -20 ° C to +50 ° C / -4° F to +122° F


Diving Functions:


Maximum operating depth (EN 13319) 150 m
Trimix (mixed gas)   
Nitrox (and air)   
Dive time 0 to 999 min
Surface time 0 to 99 h 59 min
No fly time   
Safety Stop   
Deep Stop   
Ascent time display 0 - 999 min (- - after 999)
CNS/OTU (OLF) calculation   
Wireless air integration optional
Decompression model SUUNTO FUSED RGBM
Personal adjustment from -2 to 2
Altitude adjustment 0 - 300 m / 300 -1500 m / 1500 - 3000 m
Gases up to 8 gases (Oxygen 5 - 99% / Helium 0 - 95%)
Gas max pO2 1.2 - 1.6
Gas switching   
No-decompression planner   
Logbook memory ~140 h (20 s sampling rate)
Logbook bookmarks   
Logbook sampling rates 10, 20, 30, 60 s
Dive History lifetime
Rebreather (CCR)   


Dive Alarms and Notifications

Dive time   
Maximum depth   
Tank pressure   
High pO2 (hyperoxic)   
Low pO2 (hypoxic)   
Too fast ascent   
Decompression ceiling violation   
Deepstop violation   
CNS/OTU (OLF) 80% / 100%   
Switch gas (better gas is available)   



Diluents up to 3 diluents (Oxygen 5 - 99% / Helium 0 - 95%)
High/low setpoints   
Custom setpoint   
Manual/Automatic Setpoint Switching  


Outdoor Functions


Temperature display range -20° C to +50° C (+/- 2° C) / -9° C to +122° F (+/- 3.6° F)
Temperature resolution 1° C / 1.5° F


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