Analytical Industries Inc - Originating from a passion for excellence and quality.

Analytical Industries Inc (AII) is renowned for its high-quality, reliable electrochemical electrochemical oxygen sensors and robust, easy-to-use analyzers and portable instruments. AII is headquartered in Pomona, California and was founded in 1994 by three engineers who aimed to use their understanding of electrochemical oxygen sensing technology to create a new generation of sensors with excellent measurement range and lifespan.

Today, AII provides instruments and sensors for industrial control, natural gas processing, medical, and professional diving industries around the world.

The product range includes:

Oxygen sensor ppm and% O2 for breathing gases

Oxygen sensors for industrial gases, with ranges of ppb, ppm, and% O2

Oxygen analyzer for PPB, PPM, and% O2

An analyzer for hydrogen sulfide (H2S), carbon monoxide (CO), or gas mixtures.

AII is part of the Process Sensing Technology (PST) group, and our customers can now benefit from a wider range of complementary product lines and a broader distribution network.

GPR-1000（Oxygen SensorGPR-12-100-M，acidityOxygen SensorXLT-12-100-M）

GPR-1100（Oxygen SensorGPR-12-333，acidityOxygen SensorXLT-12-333）

GPR-1200(Oxygen sensor)GPR-12-333，acidityOxygen SensorXLT-12-333)

GPR-1200MS (Oxygen Sensor)GPR-12-2000MS)

GPR-1200MS-2 (Oxygen Sensor)GPR-12-2000MS-2，Oxygen SensorGPR-12-2000-MS2)

GPR-1500（Oxygen SensorGPR-12-333）

GPR-1500A，GPR-1500N（Oxygen SensorGPR-12-333）

GPR-1500GB（Oxygen SensorGPR-12-333-M，Oxygen SensorXLT-12-333-M）

GPR-1600（Oxygen SensorGPR-12-333，Oxygen SensorXLT-12-333）

GPR-1900（Oxygen SensorGPR-11-60-4，acidityOxygen SensorXLT-11-24-4）

GPR-2000（Oxygen SensorGPR-11-32-RTS，Oxygen SensorXLT-11-24-RTS）

GPR-2600（Oxygen SensorGPR-11-32-4，Oxygen SensorXLT-11-24-4）

GPR-2900（Oxygen SensorGPR-11-60-4，acidityOxygen SensorXLT-11-24-4）

GPR-35（Oxygen SensorGPR-11-32-RTS）

GPR-2500N，GPR-2500A（Oxygen SensorGPR-11-32-4，Oxygen SensorXLT-11-24-4）

GPR-2500MON，GPR-2500AMO（Oxygen SensorGPR-11-120-4）

GPR-2800IS，GPR-2800AIS（Oxygen SensorGPR-11-32，Oxygen SensorXLT-11-24）

GPR-2800ISLD，GPR-2800AISLD（Oxygen SensorGPR-11-32-LD，Oxygen SensorXLT-11-24-LD）

GPR-3100（Oxygen SensorGPR-11-120-OP）

GPR-3500MO（Oxygen SensorGPR-11-120-RTS）

GPR-3500MOVR（Oxygen SensorGPR-11-120-OP）