The PETREL 3 gives divers our most connected experience. A stunning, easy-to-read, 2.6” AMOLED display is protected by a toughened glass lens, titanium bezel, and piezo touch buttons. Air integration is standard with up to four Shearwater transmitters to customise a solution from open circuit to rebreather and bailout gas pressure monitoring. Safety is increased with a strong vibration alert system, and a user-changeable AA battery offers long dive times and ease of replacement. PETREL 3 is available in standalone or rebreather monitoring models, including DiveCAN, 4-pin AK, and Fischer port connections. Features Multiple Diving Modes Large, easy-to-read display, 6.60cm / 2.6” bright and clear AMOLED display Two Button Interface User Replaceable AA Battery Digital Compass Bluetooth® Wireless Technology Multiple Languages Cloud Control This model includes a Fischer port connection. The External Monitoring Mode provides real time PPO2 monitoring of 1 - 3 O2 sensors. WORLD-CLASS REBREATHER MONITORING SOLUTION BIGGEST, BRIGHTEST, EASIEST TO READ DISPLAY AIR INTEGRATION CAPABILITY POWERFUL VIBRATION ALERTS Petrel 3 Monitor for 4-pin (analog) CCRs. The External Monitoring Mode provides real time PPO2 monitoring of 1 - 3 O2 sensors.