What To Look For
Digital pressure gauges tell divers how much oxygen they have available based on diving depth. Many advanced divers use personal dive computers, so digital pressure gauges need to be compatible with these types of systems depending on your level of diving experience. Divers of all levels need pressure gauges with luminescent, easy-to-read faces and caution zone indicators. Digital pressure gauges should be rated to 5,000 psi and be both oxygen- and nitrox-compatible.
Common Pitfalls
Diving gauges are fairly simple in design and operation, and although the digital pressure gauge will be more accurate, it's more likely to fail because of its electronic components. Since digital pressure gauges are connected to the tank by a hose, look for gauges that feature reinforced, double-braided hoses with Kevlar-brand materials and brass marine fittings for optimum performance.
Where To Buy
The best place to buy digital pressure gauges for scuba diving is through stores specializing in scuba diving equipment. Genesis and Oceanic Worldwide brands are leaders in the field of diving equipment and both provide dealer locator options on their websites. Oceanic guarantees its products only when purchased through a registered dealer both for online purchases and in-store sales.
Cost
Digital pressure gauges are significantly higher in price than analog gauges, so it's important to buy these products from registered dealers to guarantee the best price and service plans. As of November 2010, the Aqualung Vyper Air retails from $725 to $1,095. The Oceanic Nitrox Dive Computer sells for $1,600 and the Tusa Zen Air Hoseless Dive Computer retails for around $800.
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