The Air Integrated (AI) version of Perdix from Shearwater Research of Canada is a full decompression dive computer with recreational divers in mind. The Perdix-AI supports wireless gas pressure integration with tracking tank gas pressures (optional transmitters required.) Out of the box, the Perdix includes open-circuit and closed-circuit Air, Nitrox, and Trimix mixed gas functionality, along with several enhanced navigation features for the three-axis tilt-compensated digital compass. The standard firmware supports English language menus and both imperial/metric units of measure. The Perdix AI can wirelessly connect to one or two optional transmitters*, allowing the diver to monitor up to two tank pressures and allowing for side-mount diving. It can also calculate the Gas Time Remaining (GTR) on one assigned tank. Air integration is optional for all modes, from OC Rec to CC/BO. The tank pressure(s), in PSI or BAR and GTR, can be displayed to the customizable slots on the main display screen or accessed through the underlying information screens. Enabling the AI feature causes an approximately 10% decrease in Perdix battery life. The Perdix has been designed to accept any type of AA-size battery, including alkaline, lithium, and rechargeable.