The Shearwater Petrel 3 is a versatile dive computer for recreational and technical diving, combining a high-contrast AMOLED display, robust construction, and advanced decompression and rebreather features.

• Display: 2.6" AMOLED, 320×240 resolution with customizable layouts.
• Housing: Titanium bezel with toughened aluminosilicate glass.
• Battery: User-replaceable AA (compatible with alkaline, lithium 1.5V, or SAFT LS14500).
• Dive modes: Air, Nitrox, Trimix, Closed Circuit (CC), Semi-Closed Rebreather (SCR).
• Air integration: Compatible with up to four Shearwater transmitters for gas pressure monitoring.
• Compass: Integrated 3-axis, tilt-compensated digital compass available in all modes.
• Connectivity: Bluetooth for syncing with Shearwater Cloud for firmware updates and dive log management.
• Decompression models: Buhlmann ZHL-16C algorithm with optional VPM-B and DCIEM models.
• Alerts: Customizable vibration and visual alerts for maximum depth, dive time, and no-decompression limits.
• Depth rating: Rated to 290 m (950 ft).
• Memory & firmware: Up to 1,000 hours of dive data; user-upgradable firmware.

Physical specifications: 83 mm × 75.5 mm × 39 mm; weight approximately 285 g (10.05 oz).

Available models:

• Petrel 3: Standard standalone model.
• Petrel 3 Fischer: Fischer port for rebreather integration and real-time PPO2 monitoring of 1–3 O2 sensors.
• Petrel 3 Monitor (4-pin): Rebreather monitoring model with a 4-pin connection.

The Petrel 3 delivers reliable decompression algorithms, air integration, and rebreather compatibility for a wide range of diving applications.