Want the latest firmware release?


Download it here:

This is a recommended update for all Predator users.

Scroll down below to see what the release has to offer!


Want to know about the NEW NERD?

 The Shearwater NERD (Near Eye Remote Display) is the first technical dive computer with a display 

nerd_big-420x357mounted on the dive

r’s rebreather mouthpiece. This revolutionary device keeps crucial information in your line-of-sight for the entire dive. Thanks to the Micro LCD display and magnifying lens, the data appears as if displayed on a 32” TV screen 12’ away, with no need to focus. The display is unobtrusive as it virtually

disappears when you look straight ahead. The numbers are there when you need them at any point during the dive, and out of the way when you don’t.

The NERD displays the same information as the Petrel technical diving computer, and features the same rugged design, built to withstand the most extreme diving conditions. The device also connects to your desktop computer through Bluetooth, enabling you to keep a detailed dive log and easily download firmware upgrades as they become available.

  • Air, nitrox and trimix decompression computer
  • Open circuit/closed circuit with fixed PO2 and 1 or 3 cell monitoring
  • With fischer connector

Rugged Technical Dive Computer

  • 320×240 QVGA Full Colour Micro LCD Display
  • Air, Nitrox, Trimix
  • Single AA Battery (Any Type)

Multiple Decompression Algorithms

  • Bühlmann ZHL-16C with Gradient Factors
  • User Adjustable Conservatism
  • Open Circuit, 5 Gases
  • Closed Circuit, 5 Gases
  • Optional VPM-B
  • Gauge Mode

Simple Yet Advanced User Interface

  • 2 Button Push OC Bailout
  • Colour Coded Warnings
  • Simple to Use Adaptive Menus
  • Automatic Screen Brightness


  • Metric and Imperial
  • Flip Screen
  • Firmware Updates Via Bluetooth

Dive Logging

  • 1000 Hour Dive Log
  • Free Shearwater Desktop Software
  • Dive Log Downloads via Bluetooth
  • Third-Party Dive Log Software Compatibility



Posted on: March 13, 2014
Predator Firmware V56 has been released.

Download it here:

This is a recommended update for all Predator users.

Version 56:

All Models:

• NEW FEATURE: Added tissues bar graph to info screens.
• NEW FEATURE: Surface Interval now displays on main screen (in place of deco STOP TIME)
when not diving.
• NEW FEATURE: Added optional new style gas select (like in Petrel).
• NEW FEATURE: Added Clear Log menu option (cannot be undone). Doesn’t actually delete
data, but flags records so does not display on Predator or desktop software. However, logs
can still be recovered from .swlogdata file. Reason for the ability to recover is in the case of
a diving accident, where logs have been accidentally or maliciously deleted.
• IMPROVEMENT: Changed VPM-B convergence criteria to handle corner cases better.
• CHANGE: When within 1m of surface, do not update average depth. Prevents surface
intervals from being included in average depth.
• FIX: Improvements to GF and VPM-B NDL calculations for more accurate NDL times,
especially during ascents.
• FIX: In VPM-B, if a better gas was available, but user remained on a different gas, then when
approaching a stop, the deco calculations would switch back and forth between using the
better gas and using the current gas depending on slight changes to depth. Proper behavior
is to assume user will select the better gas, and always use that for deco calculations.
• FIX: For Deco Planner in Buhlmann GF, fixed problem where on some units the first run of
the Deco Planner would result in slightly different results from all subsequent (and correct)

Standalone and Fischer Models:

• NEW FEATURE: Added gauge mode. With stopwatch and resettable average depth.
• NEW FEATURE: Added configurable centre row displays. Unused space on main screen
centre row can be user configured (not available when 3 external O2 sensors are used, as
there is no unused space).
• CHANGE: Slight menu reorganization. Added a Mode setting (OC, OC/CC, OC/SC, Gauge) like
on the Petrel. This replaces two older menu items, ‘OC Only’ and ‘Closed\Semi’.

Analog Rebreather Controller Models:

• IMPROVEMENT: Added solenoid current measurements when solenoid is expected to be
off. Used to detect if solenoid MOSFET switch has failed as a short circuit. Issues a Solenoid
Alert warning.
• IMPROVEMENT: O2 injection is more aggressive when using 0.19 setpoint (since overshoot
is not a problem, but allowing PPO2 to fall below 0.19 is a problem).
 FIX: For Hollis liability screen, flip buttons when screen is flipped.
 CHANGE: When bailing out to OC, automatically switch to low setpoint (to make buoyancy
control easier).
• CHANGE: If setpoint is 0.19, and wet contacts detect water, then promote setpoint to low
 Reminder that the 0.19 setpoint is not intended for use when breathing on the loop. The
0.19 setpoint is a convenience feature for use when setting up and storing the rebreather

DiveCAN Rebreather Controller Models:

• FIX: Fixed problem with very high CAN bus loads (> 40%) which can cause watchdog reset.
Never reported in the field, as typically bus loads are under 0.5%.

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