Shearwater Petrel 2 Scuba Diving Computer

A Review

Shearwater Petrel 2 Scuba Diving Computer Review

Overview

The Petrel 2 by Shearwater is both Open Circuit and Closed Circuit Trimix enabled straight out of the box. More there is almost no need for an introduction of this scuba diving computer because it is just about the best and most reliable mixed gas dive computer on the market. In this Shearwater Petrel 2 Review, we shall be looking into all the intricacies of this dynamic features and attributes while also touching its merits and demerits.

Built with a fully mechanized casing which houses the 2.4 inches stunning full-color high definition display, Petrel 2 has a simple two button operation and digital compass. As such making it a good computer for divers who fancy sophistication in their gears.

Petrel 2 is one of the best choice scuba dive computers among professional and technical divers.  With 5 programmable gases in each OC/CC mode, fixed PO2 and two buttons BO on a closed circuit, color coded warnings, simple to use adaptive menus, user replaceable battery is sure does more than just another dive computer on the market.

Developed with a good grade processing power, Shearwater Research Petrel 2 comes with several important enhancements to its display that you will make your scuba diving experience something very pleasurable. Furthermore, on the sophistication of this ultimate scuba diving computer, it uses a rechargeable AA battery that can be conveniently recharged and changed thus making it a good option for the everyday diver.

Shearwater Petrel 2 Review

Compared to all the other dive computers we have had a chance to review the Shearwater Petrel 2 stands out as an obvious choice for technical divers. The Petrel 2 dive computer is a fully loaded open and closed circuit wrist computer, which means it supports both normal regulators and re-breathers. It also has 5 different programmable gas mixtures and supports trimix diving as well. While all that might sound like a mouthful, to technical divers these are all important factors when looking to purchase a new dive computer. The good news is that this feature rich dive computer is also a great choice for recreational scuba divers even if you never plan on becoming a tech diver.

Let’s start with the most obvious component. The large 2.4 inch LCD screen. This crisp display is a nice step up from the normal Dot matrix style displays on most other wrist dive computers available today. More and more manufacturers are loading their high-end computers with actual screens, which are low on power consumption but offer a LOT more view-able information while remaining extremely readable. The backlight on the Shearwater Petrel 2 is adjustable and on medium brightness with a single AA alkaline battery (or lithium for even longer life), you will get about 35 hours of life. Not too shabby at all. You can also customize the layout of all the essential info to suit your dive style and cool features like time to surface calculate the actual end of dive time in minutes, based on decompression and safety stop settings you can set before your dive.

Specs

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Algorithm Dual: Buhlmann GF algorithm or Optional VPM-B algorithm
Depth Display  Norm (Air/Nitrox): 330′ (100 Meters), Gauge/Free Dive Modes: 495′ (150 Meters)
Audible Alarm Has an Audible Alarm System
Altitude Adjustable Yes, 2,000′ To 14,000′ (610 To 4,200 Meters)
Backlight Yes, LCD screen with backlight
Operating Mode Air, Nitrox, Gauge or Free Dive
Upgradeable The Device Can Be Upgraded
Memory Capacity 1000 hours
Display Type Imperial and Metric Display
Power AA Alkaline or Lithium user replaceable battery.

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Features

  • Algorithm: Dual: Buhlmann GF algorithm or Optional VPM-B algorithm
  • Audible Alarms: Yes
  • Wireless Air Integration: Yes
  • Depth Display:  Norm (Air/Nitrox): 330′ (100 Meters), Gauge/Free Dive Modes: 495′ (150 Meters)
  • Altitude Adjustable: Yes, 2,000′ To 14,000′ (610 To 4,200 Meters)
  • Operating Modes: Air, Nitrox,Gauge or Free Dive
  • Back Light: Yes, LCD screen with backlight
  • Onboard Compass: Tilt compensated digital compass
  • Memory Capacity:  1000 hours
  • Time, Date & Temperature: Yes
  • Imperial/Metric Display: Yes
  • Battery: AA Alkaline or Lithium user replaceable battery

Pros and Cons

PROS:
  • Supports Air, Nitrox and Trimix
  • HD screen is easy to see in any conditions
  • Easy use and read display
  • One of the best compasses in any dive computer
  • Extra durable design
  • 5 Programmable gas mixes both open and closed circuit
  • Works with re-breathers
  • Bluetooth data transfer built in
  • Great for aspiring Technical divers

CONS:
  • no wireless air integration
  • cannot be used as a daily watch

Editors’ Opinion

Compared to all the other dive computers we have had a chance to review the Shearwater Petrel 2 stands out as an obvious choice for technical divers. The Petrel 2 dive computer is a fully loaded open and closed circuit wrist computer, which means it supports both normal regulators and re-breathers

Deal