The Shearwater Perdix 2 Ti Dive Computer is Shearwater’s toughest and most reliable full-size computer supporting multiple gases, Open Circuit and CCR mode and is the best dive computer in 2023 in our view.
It supersedes the original and very popular (discontinued) Shearwater Perdix computer and comes in two colour finishes: The Shearwater Perdix 2 Ti Black and the Shearwater Perdix 2 Ti Silver dive computers.
Shearwater Perdix 2 Ti Dive Computer
Shearwater research has brought a number of enhanced features to the discontinued Perdix computer with the Perdix 2: tough, titanium, strong vibration and ability to monitor up to 4 transmitters being the highlights of this new unit.
These improvements make it our best dive computer for 2023 as was the popular previous version Shearwater Perdix in recent years.
The armoured casing with precision titanium surround bezel and dependable titanium piezo touch buttons protect performance-enhanced electronics while an aluminosilicate glass lens guards a fantastic 2.2” bright screen and offers improved clarity, impact, and damage resistance.
A strong vibration customisable alert system (you’ll not miss it!) draws attention at critical moments of the dive.
Integration with up to 4 optional Shearwater Swift transmitters allows room to grow from a first computer to a powerful, proven advanced technical diving solution with multiple cylinders.
All of this is delivered using the trusted and easy to find user-changeable single AA battery and familiar ergonomic compact form factor.
Multiple Diving Modes
- Air / Nitrox / 3 Gas Nitrox: 3 gas nitrox computer for the serious recreational diver
- Open Circuit Technical: Trimix enabled
- Closed Circuit/Bailout: Trimix enabled. Constant PO2 for closed circuit
- Gauge: Depth, time, resettable stopwatch function. Full dive logging
More about Perdix 2 Ti
High Resolution, easy-to-read display
2.2″ display with vivid, enhanced colour range and saturation. Impact-resistant toughened aluminosilicate glass screen with superior clarity.
Thin, Low-profile Design
30% smaller in volume than the Petrel 2.
Two Button Interface
Simple to navigate, state-aware menu structure.
User Replaceable Batteries for both Perdix 2 and Transmitter
The Perdix 2 works with any standard AA battery and the transmitter uses a 3V CR2 Lithium.
Bluetooth® Wireless Technology
This enables communication with PC, Mac, iPod, and iPad with lower power consumption.
User Customizable Display
Customize your display with information important to you.
Multiple Languages
English, French, Simplified Chinese, Traditional Chinese, German, Portuguese, Korean, Japanese, Italian, and Spanish.
Cloud Control
Download and display dive logs quickly with Bluetooth® wireless technology. You can display as much or as little information as you need. The Shearwater cloud is available in 13 languages.
Optional Shearwater Swift transmitter
The Perdix 2 is capable of displaying tank pressure in all modes.
With smart AI technology, the Swift creates a highly reliable connection, listens for other transmitters, and only communicates when the channel is clear by avoiding collision with other signals.
Now, divers can use multiple transmitters near each other without worrying about potential interference.
This advanced technology is leveraged by Shearwater’s new firmware, which includes support for up to 4 transmitters on compatible Shearwater models.
The no-tools design makes it easy to remove and replace the Swift from the 1st stage (gone is the need to find a particular size tool to tighten or loosen the transmitter, making it perfect for travel!)
A double o-ring seal protects a user-replaceable 3v CR2 lithium battery, offering up to 300 hours of time. The LED status indicator lets the diver know things are functioning as they should at a glance during setup.
Optional VPM-upgrade
The Perdix 2 Ti comes with Bühlmann ZHL-16C algorithm with Gradient Factors installed but you can upgrade it to VPM-B with a special PIN, giving you the option of using the standard GF deco or switching to VPM-B. Once you select this option we will organise the unlock code for your specific model and serial number. You will then need to update your firmware to the latest firmware before using the PIN code.
VPM or the Varying Permeability Model is a decompression algorithm that attempts to model the behaviour of bubbles within the human body during decompression. The algorithm was initially developed by David Yount in laboratory testing and coded into Fortran by Erik Baker.
Shearwater Research has implemented VPM-B according to the original Erik Baker Fortran specification. In addition to implementing the Baker model, Shearwater Research has added a new option. VPM-B dive profiles often have deep stops to control bubble formation with reduced time at shallow depths.
The reduced shallow depth time can be quite aggressive with VPM-B so Shearwater Research has included a VPM-B Gradient Factor Surfacing (GFS) option. VPM-B/GFS allows VPM-B dives to be executed while ensuring that a gradient factor of 90% is never violated.
How to install VPM-B and VPM-B/GFS
Once you purchase a VPM-B upgrade pin for your Shearwater Perdix, you will receive an email with the unlock code for your unit’s serial number within 72 hours.
Firmware
First and foremost please ensure you have downloaded and installed the latest firmware before doing anything else. The easiest way to update your firmware is to download the new Shearwater Cloud and select Dive Computer-> Update Dive computer. Follow the instructions on the screen and Shearwater Cloud will handle the rest.
System Settings
Once the unit is running the latest firmware, using the left-hand button scroll to System Setup. Using the same button skip Mode, Deco, AI, Row, Gases, Alerts, Display and Compass screens and reach the System Setup screen that will have Date, Clock and Unlock rows underneath. Press Edit (right button) then Next > Next and Edit the Unlock row which will have zeros (0’s throughout). Using the Change option and Next as you complete each entry, enter the unlock code you have received and when completed, press Save.
If you have entered the correct unlock code the unit will reset itself and restart. If there is a mistake, you will receive an “Invalid” notification to repeat the above.
Mode Setup
From the main screen now return to System Setup and using the Next (left-hand button) go to Mode Setup. Edit the Mode to show OC Tec or CC/BO – if not already selected. VPM-B and the safer VPM-B/GFS will only show as an option if open circuit technical or rebreather mode is selected. Otherwise the unit will default to Bhulmann with GF options. Once in OC Tec or CC/BO mode the VPM options can be selected.
Find out more about the Shearwater Perdix 2
Want to find out more? You can read or download the (PDF) Shearwater Perdix 2 Recreational Manual or the Shearwater Perdix 2 Technical Manual today and see how many features this excellent unit has.
Shearwater Perdix 2 Ti Dive Computer Warranty
Shearwater offers a worldwide 2-year warranty on all computers. The warranty lives with the unit, not with the original purchaser. This means that whether you buy your unit from us or second-hand, the warranty will still be effective. As the warranty is linked to the computer’s unique serial number you do not need to register your computer.
Shearwater will, at its sole discretion, repair or replace defective products covered under warranty but do note the warranty does not cover unauthorised repairs, modifications, accidental damage or negligence.
