Over the past two decades, we have kept technological innovation at the core of our growth. Through focus and perseverance, we have steadily become a trusted partner in the field of gas analysis.
Chengdu R&D Center established.
Successfully developed an ion flow sensor that requires no reference gas, overcoming the limitations of traditional analysis methods.
2006: Successfully developed China's ion flow high content oxygen analyzer.
2007: The ion flow high-temperature humidity analyzer was applied in environmental monitoring systems and supported the Beijing Olympics project.
Joined the National Gas Standardization Technical Committee.
Shanghai Company officially established.
When the Wenchuan earthquake happened, Chang Ai rushed to the disaster area to actively support relief and rescue efforts.
Chang Ai nitrogen analyzer was applied in the atmospheric protection systems of key memorial sites in Beijing.
Chang Ai gas analyzers expanded fully into global markets.
Successfully developed a zirconia-based nitrogen oxides analyzer.
ISO 9001:2008 Quality Management System certified.
Oxygen analyzer became part of military supplies.
Henan Office established.
Participated in the revision of the National Standard "Determination of Trace Moisture in Gases".
Successfully developed Constant-Flow Injection Principle High-Temperature Humidity Analyzer.
This product can provide long-term, stable detection in harsh gas environments, including high temperature, high humidity, oily substances, solvents, heavily polluted, and highly corrosive conditions.
Successfully developed a solenoid valve-based flow proportional control device, effectively improving the control accuracy and reliability of SMT nitrogen protection furnaces.
The CO₂ recovery monitoring system delivers data-driven support to recycling companies, enabling balanced recovery and supporting energy efficiency, emission reduction, and cost savings.
Launched the Plateau Diffused Oxygen Monitor enables home pipeline oxygen delivery, improving the oxygen environment experience in high-altitude areas.
The establishment of the sensor company marked Chang Ai's transition from manufacturing to innovation, laying the foundation for independent R&D of core technologies.
Independently developed new alumina moisture sensor, requires no calibration, free from signal drift, and has no restrictions on storage conditions, significantly enhancing convenience and reliability.
This multi-component biogas analyzer features patented infrared and fuel cell sensors, an intuitive HMI, and printing functionality, setting a new industry benchmark.
Fix Instruments (Shenzhen) Co., Ltd. established.
Shenzhen Chang Ai Company established.
Successfully developed the TDLAS analyzer, marking a new milestone for Chang Ai in the field of laser analysis.
Successfully developed the new polymer film humidity sensor. Using innovative materials, it significantly improves signal stability in low-humidity environments while maintaining strong response in high-humidity conditions.
The folded-path laser gas analyzer based on TDLAS technology has been launched. Its design eliminates the need for pre-treatment devices, requires minimal maintenance, and is suitable for a variety of processes, offering fast measurement and easy operation.
Successfully launched the all-new thermal mass gas flowmeter, featuring the innovative"Fixed Proportional Difference" method to improve measurement accuracy and repeatability, while offering customers a comprehensive energy efficiency management solution.
Independently developed NOx sensor, providing cost-effective and reliable solutions for diesel vehicle SCR and EGR after-treatment systems, meeting China VI emission standards.
Chang Ai Shanghai Headquarters relocated.
Chang Ai Technology (M) Sdn. Bhd. established, providing more efficient and convenient localized services for the Malaysian market.
Launched the all-new industrial furnace process analyzer, featuring proprietary"dual-core" sensor technology for precise in-furnace gas concentration measurement, supporting quality management and complying with ISO9001 standards.
The new digital proportional valve, specially developed for welding processes, controls nitrogen flow rates above 60 Nm³/h and supports Industry 4.0 smart operations and remote services.