High-Precision Oxygen Analyzer Manufacturer & Supplier

At CHANG AI, your trusted Oxygen Analyzer Manufacturer and Oxygen Analyzer Suppliers, our oxygen analyzers range from trace electrochemical sensors to high-range paramagnetic units, suitable for semiconductors, petrochemicals, and medical gas systems. Our strength lies in engineering exceptional stability into every device—whether you’re measuring ppb-level oxygen in ultra-pure nitrogen or optimizing combustion in steel mills, our analyzers deliver lab-accurate readings that remain steady in extreme heat or dust. We don’t just sell hardware; we provide end-to-end support: pre-sales calibration guidance, remote installation assistance, and 24/7 remote troubleshooting. Many clients stay with us for years, not just for reliable hardware, but because we treat their operational challenges as our own.

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Top CI-PC121 Frequency conversion ion flow oxygen analyzer

Gas path pressure detection function: real-time detection analyzer gas path pressure, easy to judge whether the gas pathblocked;

Best CI-PC125 Frequency conversion ion flow oxygen analyzer

Electronic flowmeter, accurate flow detection, long service life;

Modern CI-PC126 Frequency conversion ion flow oxygen analyzer

Data storage function: real-time record test data and canquickly query the stored data;

Brand CI-PC128/-1 Frequency conversion ion flow oxygen analyzer

It has the characteristics of intelligence, good stability, highreliability and long calibration cycle;

Custom CI-PC129-6 Frequency conversion ion flow oxygen analyzer

It integrates the digital proportional valve of Changai patent, and has all the functions and characteristics of oxygen analyzer and digital proportional valve.

Wholesale CI-PC1201 Multi-channel oxygen analyzer

Adopt Modular design, add oxygen module freely, the sampling path can be chosen between 2-8;

High quality CI-PC1208 Multi-channel oxygen analyzer

With the core of micro-controller, it is stable and reliable, using the frequency conversion ion flow sensor as the measuring unit, with high precision and long calibration period;

Reliable CI-PC826 Trace oxygen analyzer

It has the characteristics of intelligence, good stability, high reliability, long calibration cycle, etc.;

Top GNL-120-1/-3 Oxygen transmitter

Advanced digital processing technology, anti-cross interference, high measurement accuracy, good stability, long service life of the sensor;

Best GNL-120-5（M2）Oxygen analyzer

GNL-120-5（M2）Oxygen analyzer Product FeaturesWith microcontroller as the core, stable and reliable;Using frequency conversion ion flow sensor as the measuring unit, high precision, long calibration cycle;Split structure design, probe using high temperature resistant material;128×640LED display window display gas concentration, menu, data and device working state, intuitive display, rich content;Using the latest touch button technology, button sensitive, reliable, simple operation, long service...

Brand CI-PC85-2 Explosion-proof oxygen/nitrogen analyzer

The combination of microcontroller and digital processing technology, anti-cross-interference, stable and reliable;

Modern CI-PC881 Oxygen/nitrogen transmitter

It has the characteristics of intelligence, good stability, high reliability, long calibration cycle, etc;

CHANG AI is a world-leading high-tech enterprise in gas analysis and detection, committed to providing customers with world-class gas analysis and detection products and one-stop solutions.

Contact Information

Fax: +86-21-33275656

Tel: +86-21-51692285 / +86-21 400 700 8817

E-mail: info@changai.com / ana@changai.com

Add: No.97, Qibao WanKe International Center, Lane 1333, Xinlong Road, Minhang District, Shanghai, P.R. China. 201101