Please note, most links within this site now redirect to Process Sensing Technologies for the most up to date information.


Oxygen analyzers and sensors for medical breathing gases and respiratory therapy

We produce oxygen sensors for the most advanced life-support systems used in intensive care and emergency medicine, as well as in outpatient care such as devices for respiratory treatment, anesthesia, incubators, lung function and ventilation technology.

Ensuring patient safety
Our ranges of medical oxygen sensors and devices are FDA-approved, so clinics can rely on them with confidence.

The links below will take you to, where the most recent product information is now available. This new website allows you to see the full PST measurement instrumentation product range in one place including all of the Aii products you’re familiar with.

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Analytical Industries Inc.
2855 Metropolitan Place,
Pomona, CA, 91767
What we do
Analytical Industries Inc manufactures high-quality electrochemical oxygen sensors and gas analyzers for industrial process control as well as breathing air for diving and medical treatment.