Shearwater Nerd (Near Eye Remote Display), the innovative Hands-Free dive computer The Shearwater NERD is the first technical dive computer with a display mounted on the diver's rebreather mouthpiece. This revolutionary device keeps crucial information in your line-of-sight for the entire dive. Thanks to the Micro LCD display and magnifying lens, the data appears as if displayed on a 32 TV screen 12' away, with no need to focus. If you can watch a TV without glasses, and even if you have a bifocal lens mask for reading gauges, you should have no problem seeing the NERD. The display is unobtrusive as it virtually disappears when you look straight ahead. The numbers are there when you need them at any point during the dive, and out of the way when you don't. The full color display is used to convey additional meaning with the information being displayed. When information is yellow or red, it calls the diver's attention to an unusual value or problem. Features: Air, nitrox and trimix decompression computer Open circuit/closed circuit with fixed PO2 and 1 or 3 cell monitoring With fischer connector Rugged Technical Dive Computer 320-240 QVGA Full Colour Micro LCD Display Air, Nitrox, Trimix Single AA Battery (Any Type) Multiple Decompression Algorithms B¼hlmann ZHL-16C with Gradient Factors User Adjustable Conservatism Open Circuit, 5 Gases Closed Circuit, 5 Gases Optional VPM-B Gauge Mode Simple Yet Advanced User Interface 2 Button Push OC Bailout Colour Coded Warnings Simple to Use Adaptive Menus Automatic Screen Brightness Customizable Metric and Imperial Flip Screen Firmware Updates Via Bluetooth Dive Logging 1000 Hour Dive Log Free Shearwater Desktop Software Dive Log Downloads via Bluetooth Third-Party Dive Log Software Compatibility