Our dive safety mission is simple: safeguard divers’ lives by delivering precise, reliable gas analysis that ensures every breath underwater is safe. At Go-NOGo, we believe that no dive should begin without certainty — certainty that the gas in your cylinder meets the standards your body and your life depend on. That belief drives everything we design, build, and deliver.

Why Gas Testing Matters

Every year, divers are injured or killed by contaminated breathing gas. Carbon monoxide, the silent killer, has no smell, no taste, and no warning — until it’s too late. Nitrox mixes that fall outside safe parameters can cause oxygen toxicity at depth, with consequences that are just as devastating. Yet despite these well-documented risks, gas testing remains inconsistently practiced across the diving community. Many divers simply trust that their fill station got it right. That trust, however well-intentioned, is not a safety strategy.

The Go-NOGo Gas Tester was created to change that. By putting professional-grade gas analysis directly in the hands of the diver, we remove the uncertainty and replace it with data. Hard, accurate, actionable data that tells you in seconds whether your gas is safe to breathe — or not.

Built for Professionals, Designed for Everyone

The Go-NOGo carbon monoxide and nitrox analyzer delivers the accuracy and dependability that dive professionals and enthusiasts alike need to make confident go/no-go decisions before every dive. Whether you’re a dive instructor running multiple students through a day of training, a technical diver preparing for a demanding deep dive, or a recreational diver heading out for a weekend trip, the Go-NOGo gives you the same level of precision that dive centres and professional operations rely on.

We designed the device to be simple enough for any diver to use without technical training, yet robust enough to meet the standards of the most demanding dive environments. From the tropics of Southeast Asia to colder, more challenging waters further afield, Go-NOGo has been built and tested to perform consistently wherever divers explore.

We also believe that owning a Go-NOGo should mean owning it for the long term. The device is designed to be fully user maintainable, and we back that up by making all parts are available directly through our webstore — so you’re never dependent on a service centre to keep your analyzer in peak condition.

A Dive Safety Mission Rooted in Experience

Our dive safety mission didn’t emerge from a boardroom. It grew from decades of real-world diving experience across the world, from working alongside dive professionals who understand the risks firsthand, and from a deep frustration with the lack of affordable, accurate gas testing tools available to everyday divers. We saw a gap between the professional equipment used by the few and the nothing used by the many — and we built Go-NOGo to close it.

With over 30 years of engineering experience and a portfolio of international patents in precision sensing technology, the team behind Go-NOGo brings serious technical credibility to a problem that demands it. Every unit is manufactured to exacting standards, tested before it leaves our facility, and backed by the kind of support that only a specialist manufacturer can provide.

Committed to Advancing Dive Safety

Our commitment extends beyond the product itself. We actively support dive safety education, work closely with dive training organisations, and continuously develop the Go-NOGo platform to meet the evolving needs of the diving community. From BLE connectivity and mobile app integration to ongoing firmware improvements, we are building a system that grows with the industry.

Because our dive safety mission is not a one-time product launch — it’s an ongoing promise to every diver who trusts us with something as critical as the air they breathe underwater.

When it comes to the gas you breathe beneath the surface, there is no room for compromise. Go-NOGo exists to make sure you never have to settle for anything less than certainty.