Air Integration — What It Is and Why It Matters
Air integration is a dive computer feature that tracks your remaining tank pressure in real time, either through a direct high-pressure hose connection or a wireless transmitter mounted on the first stage of your regulator. The computer uses your breathing rate and remaining air to calculate an estimated air time remaining (ATR) at your current depth and consumption rate.
Wireless air integration has become the standard on mid-range to high-end dive computers, with brands like Shearwater, Suunto, and Garmin offering proprietary transmitter systems. The main advantage is eliminating the need to constantly check a separate SPG console, keeping all critical data on one screen.
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Frequently Asked Questions
Is air integration worth the extra cost?
For divers who want all critical data on one screen and real-time air time remaining calculations, yes. Budget-conscious divers may prefer a wrist computer plus a standard SPG, which is functionally equivalent but requires checking two instruments.
Do I still need an SPG with air integration?
Many instructors and experienced divers recommend carrying a backup SPG even with air integration. Wireless transmitters can occasionally lose signal, and a mechanical gauge never runs out of battery.
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