Our mission is simple: empower divers with fast, reliable gas quality data to make informed go/no-go decisions before every dive. At Go-NOGo, we believe that no dive should begin without verification — verification that the gas in your cylinder has been checked against recognised quality thresholds. 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 outside accepted parameters can cause oxygen toxicity at depth, with consequences that are just as devastating. Yet despite these well-documented risks, pre-dive gas checking remains inconsistently practised across the diving community. Many divers simply trust that their fill station got it right. That trust, however well-intentioned, is not a verification strategy.

The Go-NOGo Gas Tester was created to change that. By putting accessible gas quality checking directly in the hands of the diver, we replace assumption with data — clear, indicative readings that tell you in seconds whether your gas meets recognised quality thresholds, or not.

Built by Professionals, Designed for Everyone

The Go-NOGo CO and nitrox analyser delivers the indicative readings that dive professionals and enthusiasts use 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, Go-NOGo puts gas quality data in your hands quickly and simply.

We designed the device to be straightforward enough for any diver to use without technical training, yet robust enough for 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 replacement parts available directly through our webstore — so you’re never dependent on a service centre to keep your analyser in peak condition.

A Mission Rooted in Experience

Our mission didn’t emerge from a boardroom. It grew from decades of real-world diving experience, from working alongside dive professionals who understand the risks firsthand, and from a deep frustration with the lack of affordable, accessible gas checking tools available to everyday divers. We saw a gap between the 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 Gas Quality Awareness

Our commitment extends beyond the product itself. We actively support dive 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.

The Go-NOGo device is not a one-time product launch — it’s an ongoing commitment to every diver who wants to know what’s in their cylinder before they descend.

When it comes to the gas you breathe beneath the surface, assumption is not enough. Go-NOGo exists to make sure you always have the data to decide.