Product
As an innovator and standard-setter in China's analytical instrumentation sector, Changai specializes in manufacturing high-performance Gas Analysis Equipment and Gas Analysis Instruments, delivering precise, reliable gas analysis and measurement solutions for global industrial processes. Leveraging six core technology platforms—electrochemistry, spectroscopy, laser (TDLAS), chromatography, thermal conductivity, and advanced sensing—we have built a comprehensive product portfolio encompassing oxygen analysis, dew point monitoring, multi-component gas analysis, online chromatography, and complete pre-treatment systems. Over 200 instrument models are widely deployed across dozens of critical industries including air separation, petrochemicals, metallurgy, semiconductors, environmental protection, energy, food, and pharmaceuticals.
Through the technical depth honed by national-level research projects, we ensure exceptional stability and accuracy in complex operating conditions such as high temperatures, high pressures, and high dust environments. From laboratories to production lines, Chang'ai safeguards process safety, enhances energy efficiency, and ensures product quality with innovative technology and reliable quality, committed to being your trusted analytical measurement partner.
Based on thermal principle, not affected by temperature and pressure, integrated temperature measurement ultra-wide 1:2500 ratio, measuring range 0.1Nm/s to 250 Nm/s;
Extremely high sensitivity, the lower limit of gas measurement can reach 5Nm/s;
Suitable for dirty and wet compressed air, various industrial gases such as oxygen and natural gas, and steam and other media;
Suitable for dirty and wet compressed air, various industrial gases such as oxygen and natural gas, and steam and other media;