Analytical Industries Inc. (AII) is an electrochemistry company at its core. Since 1990, operations in Pomona, California have centered on a singular focus: perfecting the galvanic fuel cell oxygen sensor. This proprietary technology forms the engine of every instrument we produce—from the Pico-Ion series, capable of detecting oxygen at parts-per-billion levels in semiconductor process gases, to the GPR series analyzers that monitor natural gas pipeline integrity.

Because this core sensing technology is exceptionally stable and virtually maintenance-free, it has earned global adoption in critical medical devices, including ventilators and anesthesia machines. AII’s ISO 13485 and MDSAP certifications underscore a rigorous commitment to life-sustaining quality standards. Now operating as part of the DwyerOmega family of brands, AII maintains its manufacturing footprint in the USA, offering both off-the-shelf analyzers and custom OEM sensing solutions for partners who require uncompromising gas measurement accuracy.