Oxygen Analyzers for Process & Industrial

Analytical Industries Inc. delivers a comprehensive suite of oxygen analyzers tailored for industrial gas applications, whether you need ultra-trace monitoring down to parts-per-million or reliable ambient percent O₂ measurement.

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Our GPR-1600, -2600 and -3100 analyzers deliver ultra-trace oxygen detection (±0.02 ppm) ideal for applications such as semiconductor wafer fabrication, specialty-gas purity verification, leak testing in glove boxes, and inert-gas blanketing in chemical processing. Each model can be configured for bench-top, 19″ rack, panel or wall-mount installation, making them simple to integrate into gas-delivery panels, pilot plants or quality-control labs.

For broader ambient-level monitoring—whether safeguarding pharmaceutical cleanrooms, maintaining food-packaging atmospheres, or controlling combustion in boiler rooms—the wall-mounted GPR-2500 offers spans from 0–1 % up to 0–25 % O₂. Built-in temperature compensation, loop-powered 4–20 mA outputs and optional sensor kits (for high-CO₂, helium or hydrogen environments) ensure dependable performance in both safe and classified hazardous areas.


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