A note on models: The Petrel, Petrel 2, and Perdix share a common firmware base. Due to hardware differences not all features are available on all ...

FIX: Corrected the ascent rate arrows display. In v34 the dark gray was incorrect, making the display appear to always be full.

A note on models The Petrel, Petrel 2, and Perdix share a common firmware base. Due to hardware differences not all features are available on all m...

Listing of changes in Petrel Firmware v33 These changes apply to both the Petrel and Petrel 2 unless otherwise noted. NEW FEATURE: After changing...

New Features/Improvements: Date Format is now available under Edit->Date Format Windows installer now has the option to create a Desktop Shortc...

New Features/Improvements: Order Preferences are now saved between sessions for dive rows UI Improvements: Added blue colour scheme back Dive De...

The following is a list of improvements provided by the latest firmware version for the Petrel. This download is recommended for all users of the Petrel and Petrel2 dive computers.

Release notes for the NERD Firmware V09. Released on June 17, 2015.

Fixed a bug in the Dive Planner where under some circumstances an ascent leg would incorrectly labeled as a descent leg and given zero time duration.