Ensuring the quality of our gas analyzers is our goal at ChangAi. Therefore, we only accept materials from reliable suppliers who provide qualified products and services, and components are tested before use to verify that they meet our standards. Our staff also continually undergoes training to improve their efficiency, effectiveness, and quality awareness, which results in higher quality products for our customers.

In addition to a wide variety of superior quality gas analyzers, we at ChangAi also offer customized solutions to accommodate specific application needs in different fields. Our oxygen analyzer and portable oxygen analyzer have been successfully applied in metal heating treatment. By measuring the oxygen content in the heating environment, the oxygen analyzer helps ensure the level of oxygen meets the technical standards required for processing metal. Our explosion-proof oxygen analyzer and other gas analyzing instrument are commonly utilized in the processing of fine chemicals such as surface active agents, catalysts, auxiliaries, and chemical reagents, as well as food additives, leather chemicals, functional polymer materials, and more. Our oxygen analyzer and humidity analyzer are widely used in continuous emission monitoring systems in coal-fired power plants, refuse incineration plants, chemical plants, paper mills, and many other applications.

In order to provide quality gas analyzing equipment at competitive prices, we at ChangAi take measures to control our costs. For example, we apply the ISO9001 quality management system standard during the design, development, production, installation and service of our oxygen analyzer, humidity analyzer, dew point analyzer, and more. This allows us to streamline our operation while reducing waste and increasing productivity. We have also established an effective cost-control system to monitor the cost of each facet of our operation, from product research and development, design, material acquisition, through all production steps, to final shipment. Meanwhile, our cooperative relationships with carefully selected suppliers allow us to acquire high quality materials and components at very competitive rates. Even our warehousing and stocked inventory is carefully monitored to reduce waste of product and space. Finally, our location in Shanghai provides us easy access to seaports, international airports, and convenient land transportation as well, which reduces our clients' international transportation cost. While focusing on reducing costs, we never sacrifice the quality of our gas analyzers or other products. Our efforts have resulted in our products' popularity with customers in both domestic and international markets.