The Perdix dive computer from Shearwater search, is a robust dive computer for technical divers of all levels, and ready out of the box for air, nitrox, and trimix gasses. The Perdix is the newest offering from Shearwater, similar in design an operation to the Petrel line of dive computers, but in a smaller form factor.
Its simple 2-button interface and easy to navigate menu structure allows for intuitive and quick operation underwater. The Perdix features a large, high resolution LCD screen is both easy to read, and power efficient. The Perdix operates on any AA sized battery, and is user-replaceable in the field with minimal effort. The included digital compass is both accurate and smooth, and Bluetooth integration offers download and upload capability from Mac, PC, and iOS devices.
The Perdix may be used for open-circuit and closed circuit-diving, as well as gauge mode if desired - no pin upgrades are needed.