TheHalcyon Symbios Handset Dive Computer delivers exceptional power and functionality in a compact, slim, user-friendly design.

The Symbios Handset, similar to the the Symbios HUD, is the core of Halcyons Symbios Technology, an ecosystem designed to enhance your diving experience with advanced features and prepare you for todays adventures and tomorrows challenges.

The Symbios is a multi-gas dive computer utilising the ZHL16-C algorithm with adjustable gradient factors, accommodating up to five gases for Open Circuit diving, fixed or integrated CCR, Integrated Sidemount, and Gauge modes.

Depth-rated to 120 metres, the Symbios operates on a rechargeable Li-ion battery, providing up to 30 hours of runtime with five brightness levels. The unit also displays the normal maximum average for any dive, CO2 levels, and the CNS and OTO accumulations, along with the gradient factor.

Hybrid Transflective Screen

The Symbios’ 2.4″ transflective full-colour display offers excellent visibility and power efficiency and can be adjusted depending on the amount of ambient light on it. The screen reflects ambient light to improve clarity and allow visibility even with the backlight off; it performs exceptionally well in direct sunlight.

Sophisticated Wireless Technology

With industry-leading wireless technology, the Symprosis dive computer can receive wide-ranging data from up to 9 transmitters, including sources such as RB, DPV, HP, GPS/ Positioning systems, Trim, and more.

• From the Symbios Tank POD:
  Diver orientation (trim position) and gas pressure
• From Symbios connected CCRs:
  Oxygen Levels (PO2 on three cells)
  Battery charge state, CO2, scrubber temperature, and more
• From Symbios Enabled Products:
  Diver location from Symbios GPS POD
  DPV of other device battery levels
  Runtime, remaining time, battery health personal performance and/or biometric data

The handset uses “checksums” to isolate the potential for corrupt data. Symbios Technology reduces risk even compared to wired connections, where a corroded wire with high resistance sends compromised data.

The Symbios handset also gives you seamless rebreather integration. It effortlessly connects with the Halcyon Symbios Rebreather and is future-ready for wireless integration with an expanding range of rebreathers.

The set fulfils all EMC requirements and is FCC and CE compliant.

Moreover, with the Symbios, you can even monitor your dive buddy’s rebreather data or other available parameters, such as gas supply for paired transmitters.

Please note: This listing is for the Symbios handset only. The Halcyon Tank Pod and Symbios HUD are optional components.

Symbios Handset Dive Computer Key Features:

• Best Suited For: Active divers looking for a future-proof scalable device
• Highlights: Industry-leading, wireless technology receives wide-ranging data sources from RB, DPV, HP, GPS/ Positioning systems, Trim and more. Vibration, alerts, rechargeable battery.
• Dive Modes: Multi-gas, OC, fixed or integrated CCR, Integrated Sidemount, Gauge, Buddy Screen, Large-format screen options.
• Number of Gases: 5 OC/CC
• Algorithm: ZHL16-C
• Screen Resolution: 320 x 240
• Display Type: Transflective full colour display
• Display Size: 2.4
• Battery Type: Rechargeable Li-ion Battery
• Battery Life: Up to 30 Hours with 5 Brightness levels
• Dive Log Capacity: 5s rate 1000h
• Depth Rating: 120m
• Alerts: Vibration
• Air Integration: Tank Pod with built-in trim sensor
• Number of Transmitters: Up to 9
• Bluetooth: Yes
• Interface: 2 Tactile response buttons
• Compass: 3-Axis, tilt-compensated, digital and rose formats
• NDL Planner: No
• Deco Planner: No
• Firmware Updates: Yes
• Current Languages: English, German, Korean, Chinese
• Wrist Strap: Blue bungee kit
• Accessories: Charging cable
• Dimensions:94.4x63x19.8 mm3

Download the Symbios Brochure for more details.

Download the Halcyon App for Comprehensive Support

Download and register on the Halcyon App. Stay ahead of the crowd and dive into something special!
App Store – /kaqbvogopq
Play Store – /ojpvmugmsl

Community-Driven App
Gain unparalleled control over your device with an app supported by a vibrant user community.

Share and Grow
Dive deeper into your experiences by sharing profiles and tips, all while benefiting from regular app-based firmware updates.

Tailored Experience
You can customise settings based on your user profile, manage gas libraries, and receive personalized support through an integrated chat feature.

Dry-Dive Capability
Test and simulate dives in real-time with your Symbios Handset / HUD before entering the water.

The Halcyon Symbios Video – A New Ecosystem

Why Choose DirDirect?

• Pioneering Halcyon in the UK: For nearly 25 years, we’ve been the UK’s premier Halcyon dealer, leading the way by being the first to import and invest in their dive systems. Our consistent award-winning performance speaks to our deep expertise.
• Extensive Halcyon Inventory: Visit our dedicated technical diving and Halcyon showroom at our physical store to explore the UK’s largest in-stock selection of world-leading diving products.
• Shared Diving Philosophy: Our unwavering commitment to Halcyon stems from a shared dedication to cutting-edge technology and the enduring diving ethos they established, which many training agencies are now implementing.