Shearwater Petrel3 Monitor 4-PIN

Petrel 3 Monitor (4-Pin Analog) is a powerful and reliable dive computer and rebreather monitoring system, designed to deliver a fully connected and high-performance diving experience. Built for technical divers, it combines advanced functionality with rugged durability and intuitive operation.

The device features a vibrant 2.6” AMOLED display, offering exceptional clarity and readability in all diving conditions. Protected by a toughened glass lens, titanium bezel, and piezo touch buttons, it is engineered to withstand demanding environments.

With air integration capability for up to four transmitters, the Petrel 3 supports a wide range of configurations—from open circuit diving to full rebreather and bailout gas monitoring.

This version is specifically designed for 4-pin (analog) CCR systems, featuring an External Monitoring Mode that provides real-time PPO₂ monitoring from 1 to 3 oxygen sensors. It is available with either a standard 18” cable or an optional 30” cable for greater routing flexibility.

Safety is further enhanced with a powerful vibration alert system, while the user-replaceable AA battery ensures long dive times and easy maintenance.

Designed and manufactured in Canada, the Petrel 3 is a trusted solution for advanced and professional divers.

Key Features

• Full-featured dive computer with rebreather monitoring

• Designed for 4-pin (analog) CCR systems

• Bright 2.6” AMOLED display for superior visibility

• Rugged construction with titanium bezel and toughened glass

• Air integration with up to 4 transmitters

• Real-time PPO₂ monitoring (1–3 O₂ sensors)

• Strong vibration alerts for increased safety

• User-replaceable AA battery for convenience and long runtime

Options

• Cable Lengths: 18” (standard) or 30” (extended)

Highlights

• World-class rebreather monitoring solution

• Fully featured for technical diving

• Air integration capability

• Powerful vibration alert system

Modes

• Air
• Nitrox
• 3 Gas Nitrox
• OC Tec - Multi gas, trimix decompression computer
• CC/BO - Closed circuit fixed PPO2
• CC EXT - Closed circuit real time monitoring of 1 or 3 O2 sensors
• SCR EXT - Semi-closed monitoring of PPO2 for 1-3 O2 sensors
• Gauge - Bottom timer with stop watch and dive logging

Features

• User replaceable AA battery
• Air, nitrox, trimix capable
• Quick OC bailout from CC
• Decompression computer
• Dive planning
• Bühlmann GF algorithm
• Optional Air integration
• Connects up to 4 transmitters (optional)
• 3 axis, tilt compensated, digital compass
• Strong vibration warning alerts
• Optional VPM-B, Optional DCIEM
• Dive logging
• Bluetooth wireless technology
• Upgradeable firmware

Technical Specification:

• Screen Resolution: 320 x 240
• Display Type: AMOLED
• Display Size: 6.60cm / 2.6"
• Toughened Glass Window: Yes
• Depth Rating: 290m / 950ft
• Number of Gases: 5 Open Circuit / 5 Closed Circuit
• Rebreather Connectivity: 4-pin
• Dive Log Capacity: approx. 1000 hours
• Battery Type: Single AA (any type)
• Ships with and recommended battery type: Energizer Ultimate Lithium AA
• Battery Capacity (approx.): 5.25 Wh

Battery Life:

• Lithium 1.5V: up to 60 hours
• AA Alkaline: up to 40 hours
• Saft LS14500: up to 100 hours

Dive Computer Dimensions

• WxHxD: 83x75.5x39mm / 3.3"x2.97"x1.5"
• Weight: EXT 285g (10.05oz)

Ballistic Nylon Case

• WxHxD: 130x105x70mm / 5.1"x4.1"x2.8"
• Weight: 115g (0.25lbs)

What's in the Box:

• Petrel 3 Dive Computer with 4-pin Connection
• Inspection Checklist Card
• Product Info Guide
• Screen Protector
• Black Webbing Strap (double)