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.
Oxy-333-XL PPM Oxygen Sensor is a galvanic type micro fuel cell specific to oxygen and is a direct replacement to Analytical Industries Model XLT-12-333.
Electrochemical Galvanic Trace O₂ Sensor for PPM Oxygen Measurement (zero CO₂ cross sensi- tivity)
Oxy-550-XL PPM Oxygen Sensor is a galvanic type micro-fuel cell specific to oxgen is a drop-in replace- ment to Teledyne B-2CXL. Proprietary electrolyte for- mulation enhances sensor performance at extreme ends of recommended temperature range and offers quick recovery to low PPM level after Oxygen surge. Sensor is designed, developed and manufactured in China.
ChangAi Model Oxy-L-2CXL Trace PPM O₂ sensor is a drop-in replacement to Teledyne Class L-2C-XL, Part Number C6689-L-2CXL. This sensor has a larger electro- lyte reservoir and hence offer a much longer sensor life compared to the standard PPM O2 sensor. This sensor is ideal for very dry gas streams and gas streams at tem- perature above 50 °C. Sensor is designed, developed and manufactured in China.
ChangAi Model Oxy-L-2C Trace PPM O₂ sensor is a drop-in replacement to Teledyne Model C6689-L-2C Oxygen sensor. This sensor has a larger electrolyte res- ervoir and hence offer a much longer sensor life com- pared to the standard PPM O₂ sensor. This sensor is ideal for very dry gas streams and gas streams at tem- perature above 50 °C. Sensor is designed, developed and manufactured in China.
Electrochemical Galvanic Trace O₂ Sensor for PPM Oxygen Measurement
Oxy-333 ppm PPM Oxygen Sensor is a galvanic type micro fuel cell specific to Oxygen. Its innovative design with electro-etched sensing cathode provides with ex- tremely smooth sensing surface for excellent signal sta- bility, very low noise and drift. Proprietary electrolyte formulation enhances sensor performance at extreme ends of recommended operating temperature range. Sensor is designed, developed and manufactured in China.
Electrochemical Galvanic Trace O₂ Sensor for PPM Oxygen Measurement
Oxy-550 PPM Oxygen Sensor is a galvanic type micro fuel cell specific to Oxygen and is a drop-in replacement to Teledyne B-2C. Proprietary electrolyte formulation enhances sensor performance at extreme ends of recommended temperature range and offers quick recovery to low PPM level after Oxygen surge. Sensor is de- signed, developed and manufactured in China.