The i550C is an easy-to-use, rugged and versatile dive computer perfect for both new and seasoned divers alike. Equipped with a comprehensive suite of features, including Bluetooth, gas integration, Nitrox and Gauge modes, backlight technology and gas time remaining in an easy-to-read, large face console, it allows you to focus on your dive. The i550C is easily customizable, with an optional quick disconnect for convenient storage and a top mount compass, making this computer the sure choice for your dive kit. This model comes with a NH (Northern Hemisphere) compass. Wirelessly manage your dive data and settings on your mobile device via the computer's Bluetooth connectivity and after the dive share your memories, stats, photos, and location on social media all through the free DiverLog+ app.