Powerful, Simple, Reliable, is now Air Integrated
Shearwater is proud to introduce the newest member of the Shearwater family: The Perdix AI. Offering all of the same great features of the Perdix, the Perdix AI uses its large, easy-to-read screen to clearly display the tank pressure as well as your gas time remaining (GTR). The Perdix AI is capable of connecting to either one or two transmitters giving the diver the option to monitor both tanks or dive sidemount.

OC Recreational
3 gas nitrox computer for the serious recreational diver
Optionally air integrated
Information is displayed on the configurable bottom row

OC Technical
Trimix enabled by default
Optionally air integrated

CC/BO
Closed Circuit/Bailout
Trimix enabled
Constant PO2 for closed circuit
Optionally air integrated for diluent, oxygen and bailout gases.

Gauge Mode
Gauge
Depth, time, resettable stop watch function
Full dive logging
Tank pressure information accessible in the information screens 

Optional Air Integration
The Perdix AI is capable of displaying tank pressure in all modes

High Resolution, easy-to-read display
2.2" display with vivid, enhanced colour range and saturation

Thin, Low-profile Design
30% smaller in volume than the Petrel

Two Button Interface
Simple to navigate, state-aware menu structure

User Replaceable Batteries for both Perdix AI and Transmitter
The Perdix AI works with any standard AA battery and the transmitter uses a 3V CR2 Lithium

Bluetooth Smart
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
Languages include: English, French, Simplified Chinese, Traditional Chinese, German, Portuguese, Korean, Japanese, Italian, and Spanish.

 Desktop Control
Analyze your dive log, deco profile, temperature and more. For the Perdix AI you can monitor your tank pressure and SAC throughout the dive.
Download and display dive logs quickly with Bluetooth Smart technology.
You can display as much or as little information as you need.

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What is VPM-B software?

VPM-B

VPM Bubble Models
VPM or the Varying Permeability Model is a decompression algorithm that attempts to model the behavior 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.

The Shearwater Implementation
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.