Portable Oxygen Concentration Content Tester

Gerneric makes the Portable Oxygen Concentration Content Tester. Electrochemical polarographic sensor, hand-pinch suction sampling. 0-100% range with switchable resolution bands (1%, 0.1%, 0.01%). 9V battery, roughly 200 hours continuous operation. This is a general-purpose industrial oxygen tester (the manufacturer's own listing covers uses from grain storage to medical ventilators) rather than a device built and marketed specifically for dive shops -- it can measure nitrox oxygen content, but the dedicated dive-specific analyzers elsewhere in this batch are purpose-built for that single job. You'll complete this purchase on Amazon rather than with FGSS. We link to it as an Amazon Associate and earn a commission on qualifying orders, at no added cost to you.