About Us
Founded in 2004, CHANG AI is a global high-tech company specializing in gas analysis and detection. The company is committed to providing world-class gas analysis products and one-stop solutions for customers worldwide.
A diversified ecosystem has been established around innovative R&D, lean manufacturing, and end-to-end deep integration, with strategic capabilities across key segments of the value chain, including sensor technologies, instrumentation, and system integration solutions. Operations are managed under a quality management system aligned with ISO 9001, covering design and development, manufacturing, installation, and service.
CHANG AI has obtained authoritative certifications across major global markets, including EU CE marking, U.S. UL certification, and explosion-proof certification (Ex d IIC T6 Gb). Its quality management system is certified to ISO 9001:2015. Products have been exported to more than 20 countries and regions, including Germany, the United States, and the United Kingdom.
Shanghai high-tech enterprise Member, national technical committee for gas standardization Member, gas sub-technical committee under the national technical committee for semiconductor equipment and materials standardization Governing unit, online analytical instruments branch of the china instrument and control society Vice chair unit, gas analysis technology and instrumentation professional committee of the china industrial gases industry association"Innovative Technology, Best Serve For You" is more than CHANG AI' s brand slogan. It has been our guiding principle and standard of action for the past two decades, reflecting a steadfast commitment to mutual growth and long-term partnership with customers.
We firmly believe that the true purpose of technological innovation is to create tangible value for customers. With this conviction, we tackle industry challenges through advanced technologies and respond to diverse needs with in-depth service. By delivering precise, reliable, one-stop detection solutions, we help each customer strengthen safety in production and improve operational efficiency.
End-to-End Supply Chain Strength
Chang Ai has built a globally connected supply chain system that is independently controlled and highly collaborative. We operate a dedicated enclosure manufacturing base in Jiaxing, enabling in-house support for core structural components, while maintaining strategic partnerships with leading suppliers worldwide.
With an MES (Manufacturing Execution System) in place, end-to-end processes are managed with full visibility, ensuring stable raw material supply and on-time order delivery.
Core Proprietary Technology Advantage
CHANG AI focuses on innovation and application in analytical and detection technologies. A comprehensive portfolio has been developed across six key technology domains with over 200 product models, covering oxygen analysis, moisture and dew point measurement, thermal conductivity, infrared, laser (TDLAS), high-temperature humidity, gas chromatography, mass flow meters, and process analysis systems.
These solutions are widely used across industries including environmental protection, petrochemicals, energy, pharmaceuticals, food, metallurgy, and scientific research, and are exported to more than 20 countries and regions, including Germany, the United States, the United Kingdom, South Korea, and India.
Digital Manufacturing Assurance
The Chengdu digital manufacturing base is equipped with advanced facilities, including high-speed SMT lines, AOI optical inspection, and cleanroom workshops, enabling end-to-end automation across the production process. Annual capacity reaches 5,000 to 8,000 analyzers and 10,000 to 15,000 sensors, with a defect rate controlled at below 0.01%, ensuring reliable quality and stable supply.
Stringent Quality Inspection and Control
CHANG AI has established a three-tier quality inspection and traceability system that spans the entire product lifecycle. From IQC screening at incoming material receiving, to IPQC monitoring at critical production processes, and a pre-shipment final inspection that includes 12 comprehensive functional tests covering accuracy, environmental performance, and stability, every step is controlled and fully traceable.
With a unique product identification system in place, end-to-end traceability is enabled from individual components to finished products, providing strong support for quality assurance and rapid issue response.
Customization Capability
To meet demanding operating conditions across industries, Chang Ai has built a dedicated customization team capable of completing the full process, from requirement assessment to solution delivery, within 30 to 45 days.
From environmental monitoring for the Beijing 2008 Olympic Games, to extreme-condition testing in Antarctic scientific expeditions, and to ultra-high-purity gas analysis for the semiconductor industry, Chang Ai’s customized solutions have supported more than 1,000 well-known enterprises across over 20 countries and regions.
CHANG AI is committed to becoming a leading global provider of gas detection and integrated solutions. With a strong focus on technological innovation and teamwork, the company leverages deep expertise in industrial measurement and automation to deliver precise, reliable, and high-value products and services worldwide. CHANG AI welcome technical exchange and long-term collaboration, including joint solution development, application validation, and lifecycle support. We look forward to working with you, whether for customized requirements or technical discussions, to advance industry through precision sensing and build a safer, more sustainable industrial future.