Tongdy Control Technology Co., Ltd.

Beijing Zhongli Green Sensor Technology Co., Ltd. is located in Beijing Zhongguancun Environmental Science and Technology Park, and is a high-tech enterprise in the Science Park. Zhongli Green has an independent R&D office building, invested a lot of money in R&D equipment, calibration and testing laboratories, and established a professional calibration climate room, testing and aging room. It provides the necessary conditions for the company's continuous research and development and stable development. Zhongli Green has strong technology development and product design capabilities, providing equipment services, control services, and data services for ambient air quality monitoring. Zhongli Green is an early group of companies engaged in the R&D and production of air quality monitoring products in China. All products adopt core technologies with proprietary property rights. Fully test and in-depth analysis of R&D and applied sensors, accumulate a large amount of data, and have its own patented technology and rich application experience for compensation of environmental interference factors and data judgment and processing of long-term online monitoring. This makes Tongdy products always at the advanced and high-end level in the industry. The equipment product line includes: carbon dioxide, carbon monoxide, ozone, T VOC, PM2.5 /PM10, formaldehyde and other gas monitoring and control indoor environment, atmospheric environment, and monitoring of air quality in air ducts, monitoring data platforms and data analysis applications. These products have been widely used in thousands of projects in Europe, North America, the Gulf region and the Asia-Pacific region for more than 14 years. At the same time, we cooperate with multiple multinational companies to provide standard products or customized products. While accumulating long-term application data and experience in different environments, it also enjoys a good reputation and popularity in the industry. The company's self-developed data platform MyTongdy has powerful functions such as centralized data collection, data record analysis, problem discovery, improvement and continuous verification. The data platform realizes remote hardware remote service functions such as maintenance of monitoring equipment, version upgrades, and equipment calibration. Tongdy's multi-parameter air quality monitoring equipment meets the requirements of the green building certification system and has been used in many green buildings in Beijing, Shanghai, Shenzhen, Hong Kong, the United States, Singapore, and the United Kingdom, as well as large-scale high-end residential projects, green and healthy hotel brands, Public places and government indoor air monitoring pilot projects. Tongdy's air quality monitoring equipment, as the only partner of the World Green Building Council, is used in Earth Day projects in 35 member countries.