Updated Sep 13, 2026 · Public platform & industry data

Sep 13, 2026 Updated

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2026 Top 10 None Manufacturers in China

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Top-rated None suppliers, How to choose a None manufacturer, Best None companies in China

The top 10 None manufacturers in China for 2026 are: Nanjing Weisongli Technology Co., Ltd, Sifang Optoelectronics (Wuhan) Instrument Co., Ltd, Shenzhen Wanandi Technology Co., Ltd, Cangzhou Zhuoshun Environmental Protection Technology Co., Ltd, Shenzhen Yiyuntian Electronics Co., Ltd, Qingdao Haite Environmental Protection Technology Co., Ltd, Qingdao Xiecheng Innovation Environmental Protection Technology Co., Ltd, Weihai Jingxun Tongdao Electronic Technology Co., Ltd. Jinan Branch, Beijing Beidouxing Technology Co., Ltd, Shenzhen Osen Purification Technology Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Nanjing Weisongli Technology Co., Ltd
Overall Score4.9 / 5
Est. Date2008-04-11
Registered Capital50000K CNY

Nanjing Weisongli Technology Co., Ltd., with its registered address at No. 246 Maigaoqiao Street, Qixia District, Nanjing City, is registered with the Administrative Approval Bureau of Qixia District, Nanjing City. The legal representative is Chen Meimei, and its business scope includes the assembly, production, and sales of electronic products and instruments; Environmental engineering design and construction; Installation, commissioning, and technical services of environmental protection equipment; Computer software development and sales; Import and export business of various commodities and technologies through self operation and agency. Licensed projects: various types of engineering construction activities; Construction engineering design (for projects that require approval by law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results) General projects: sales of specialized environmental monitoring instruments and meters; Manufacturing of specialized instruments and meters for environmental monitoring; Environmental protection monitoring; Environmental consulting services; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of industrial automatic control system devices; Manufacturing of industrial automatic control system devices; Sales of security equipment; Manufacturing of specialized machinery for the production of building materials (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law). Core products: None, Online Monitoring System,

Top 2
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Sifang Optoelectronics (Wuhan) Instrument Co., Ltd
Overall Score4.8 / 5
Est. Date2010-04-19
Registered Capital30000K CNY

Sifang Optoelectronics (Wuhan) Instrument Co., Ltd., with its registered address at No. 5 Fenghuangyuan 1st Road, Fenghuang Industrial Park, Donghu New Technology Development Zone, Wuhan City, is registered with the Market Supervision and Administration Bureau of Wuhan Donghu New Technology Development Zone. The legal representative is Xiong Youhui, and its business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Software development; Information system integration services; Research and development of carbon reduction, carbon conversion, carbon capture, and carbon sequestration technologies; Oil and gas technology services; Research and development of Internet of Things technology; Mechanical equipment research and development; Manufacturing of instruments and meters; Sales of instruments and meters; Manufacturing of atmospheric pollution monitoring and detection instruments and meters; Sales of air pollution monitoring and detection instruments and meters; Manufacturing of specialized instruments and meters for environmental monitoring; Sales of specialized instruments and meters for environmental monitoring; Environmental protection monitoring; Electronic product sales; Wholesale of electronic components; Non residential real estate leasing; Import and export of goods; Technology import and export; Import and export agency. (Except for licensed businesses, it is allowed to independently operate projects that are not prohibited or restricted by laws and regulations in accordance with the law). Core products: None, Modified Atmosphere Packaging Gas Analyzer, Flue Gas Analyzer

Top 3
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Shenzhen Wanandi Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2010-06-13
Registered Capital12000K CNY

Shenzhen Wanandi Technology Co., Ltd., with its registered address at 5th Floor, Building B, Hexi Hangcheng Industrial Zone, No. 135 Qianjin 2nd Road, Taoyuan Community, Xixiang Street, Bao'an District, Shenzhen. The registered authority is the Shenzhen Market Supervision Administration, and the legal representative is Luo Haichao. Its business scope includes the technical development and sales of gas detection and alarm analyzers, instruments and meters, dust particle detectors, counters, flame detectors, environmental treatment equipment, sensors, security equipment, electronic components, computer software and hardware, and their accessories; Technical development and sales of environmental air quality monitoring systems and related software; Computer software system integration, domestic trade (excluding projects that require approval before registration as stipulated by laws, administrative regulations, and decisions of the State Council); Economic information consultation (excluding restricted projects). Import and export of goods. Production of gas detectors, detectors, analytical instruments, gas alarm controllers, environmental monitoring instruments, dust and particulate matter detectors, counters, instruments, security equipment, and sensors, except for projects that require approval according to law, and conducting business activities independently based on the business license; Production of environmental monitoring management system software; Design and construction of environmental protection engineering and fire and security engineering; Research and development, production, sales, and maintenance of gas detectors and environmental monitoring instruments. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: None, Gas Alarm Controller, Portable Gas Analyzer

TOP4
Cangzhou Zhuoshun Environmental Protection Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2022-05-16
Registered Capital300K CNY

Cangzhou Zhuoshun Environmental Protection Technology Co., Ltd. is registered at 150 meters east of Tiedong Forging Factory, Bonan Road, Botou Economic Development Zone, Cangzhou City, Hebei Province. The registration authority is Botou Market Supervision Administration Bureau, and the legal representative is Fu Yumeng. The business scope includes air pollution control. Production and sales of waste gas treatment equipment, sewage treatment equipment, sludge treatment equipment, online monitoring equipment, waste gas online monitoring equipment, water quality online monitoring equipment, filter presses, and screw stackers; Sales of mechanical components, explosion-proof devices, explosion-proof devices, instrumentation equipment, and portable detectors; Installation and sales of monitoring equipment; Production and sales of high and low voltage distribution cabinets, activated carbon boxes, photo oxygen waste gas treatment equipment dust collectors, dust removal accessories, and valves; Production and sales of fans, pipelines, and electrical control cabinets; New energy IoT services; Production and sales of packaging box houses, container houses, color steel houses, color steel equipment, packaging box house accessories, and box corners; Production, installation, and sales of color steel equipment; Production and sales of hardware products; Spark detection alarm extinguishing control system, electronic product processing, installation, and sales; Production, installation, and sales of desulfurization and denitrification equipment, oil fume purification equipment, conveying equipment, and accessories; Environmental testing services; Manufacturing, sales, and installation of industrial automation equipment, environmental protection equipment, intelligent equipment for garbage classification and treatment, kitchen waste treatment equipment, and environmental monitoring and testing equipment; Professional contracting of environmental protection engineering; Production, installation, and sales of desulfurization and denitrification equipment, oil fume purification equipment, activated carbon, zeolite rotary integrated machines, and RTO waste gas treatment equipment; Research and development of air pollution control technology; Sales of vehicle exhaust detection and treatment equipment; Couplings, transmission connectors, brakes, clutches, mechanical seals, non-standard mechanical parts, mold production and sales; Import and export of goods.. (For projects that require approval according to law, business activities can only be carried out after approval by relevant departments; for general business projects, business activities can be carried out independently according to law). Core products: None, Nitrogen Oxide Analyzer, Voc Online Monitoring System

TOP5
Shenzhen Yiyuntian Electronics Co., Ltd
Overall Score4.7 / 5
Est. Date2006-01-20
Registered Capital10000K CNY

Shenzhen Yiyuntian Electronics Co., Ltd., with its registered address at 7th Floor, Building 10, Rundongsheng Industrial Zone, Longzhu Community, Xixiang Street, Bao'an District, Shenzhen. The registration authority is the Shenzhen Market Supervision Administration, and the legal representative is Cui Dian. Its business scope includes the technical development, design, and sales of sensors, transmitters, transmission modules, detectors, analyzers, alarm devices, testers, and industrial control products; Instrument and meter repair; Sales of instruments and meters; Sales of water quality pollutant monitoring and detection instruments and meters; Sales of specialized instruments and meters for environmental monitoring; Sales of experimental analytical instruments; Wholesale of electronic components; Retail of electronic components; Sales of industrial control computers and systems; Software sales; Software development; Intelligent control system integration; Information technology consulting services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Domestic trade agency. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) The licensed business projects are: manufacturing of water pollution monitoring and detection instruments and meters; Manufacturing of instruments and meters; Manufacturing of specialized instruments and meters for environmental monitoring; Manufacturing of experimental analytical instruments; Manufacturing of electronic components; Manufacturing of industrial control computers and systems; Production of sensors, transmitters, transmission modules, detectors, analyzers, alarm devices, testers, and industrial control products; Import and export of goods; Technology import and export. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: None, Portable Gas Detector, Online Monitoring System

TOP6
Qingdao Haite Environmental Protection Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2010-03-15
Registered Capital10000K CNY

Qingdao Haite Environmental Protection Technology Co., Ltd., registered at Building 702, Phase II, Zhiyuan Garden, Xiazhuang, Chengyang District, Qingdao City, Shandong Province, China. Its registered address is No. 328 Chengkang Road, Chengzhuang Street, Chengyang District, Qingdao City. The registration authority is the Market Supervision Administration of Chengyang District, Qingdao City, and the legal representative is Shang Xuemin. Its business scope includes general projects such as sales of instruments and meters; Manufacturing of instruments and meters; Manufacturing of electronic measuring instruments; Manufacturing of specialized instruments and meters for environmental monitoring; Engineering and technical research and experimental development; Information system operation and maintenance services; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Wholesale of hardware products; Retail of hardware products; Sales of special labor protection equipment; Wholesale of computer software, hardware, and auxiliary equipment; Retail of computer software, hardware, and auxiliary equipment; Software development; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: None, Online Analyzer Supporting Instruments And Accessories, Laboratory/Portable Water Quality Analyzer

TOP7
Qingdao Xiecheng Innovation Environmental Protection Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2022-01-29
Registered Capital10000K CNY

Qingdao Xiecheng Innovation Environmental Protection Technology Co., Ltd., registered at 720 meters east of Dazhou Village Community Neighborhood Committee, Chengyang District, Qingdao City, Shandong Province, is registered with the Market Supervision Administration of Chengyang District, Qingdao City. The legal representative is Sun Xiaomei, and the business scope includes general projects such as indoor air pollution control; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Environmental protection monitoring; Development of artificial intelligence application software; Basic software development for artificial intelligence; Sales of mechanical equipment; Sales of intelligent instruments and meters; Sales of experimental analytical instruments; Sales of specialized teaching instruments; Sales of electronic measuring instruments; Sales of specialized instruments and meters for environmental monitoring; Sales of marine water quality and ecological environment monitoring instruments and equipment; Sales of specialized equipment for environmental protection; Sales of labor protection equipment; General equipment manufacturing (excluding special equipment manufacturing); Environmental consulting services; Manufacturing of specialized instruments and meters for environmental monitoring; Specialized equipment repair; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, and fisheries; Manufacturing of specialized equipment for environmental protection; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Manufacturing of communication equipment; Manufacturing of network equipment; Manufacturing of mobile communication devices; Manufacturing of security equipment; Manufacturing of instruments and meters; Manufacturing of ecological environment monitoring and detection instruments and meters; Sales of environmental emergency detection instruments and meters. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: None, Methane Detector, Six In One Gas Detector

TOP8
Weihai Jingxun Tongdao Electronic Technology Co., Ltd. Jinan Branch
Overall Score4.6 / 5
Est. Date2019-05-15
Registered Capital-

Weihai Jingxun Tongtong Electronic Technology Co., Ltd. Jinan Branch, registered at Room 3-602C, Building B, Shuntai Plaza, No. 2000 Shunhua Road, High tech Zone, Jinan City, Shandong Province, China. The registration authority is the Market Supervision Bureau of Jinan High tech Industrial Development Zone Management Committee, and the legal representative is Wang Xiang. The business scope includes technical development, consulting, transfer, and production and sales of measurement and control equipment, instruments and meters, automation equipment, security monitoring devices, computer software and hardware, electronic products and accessories; Design, construction, and maintenance of security monitoring engineering and computer network system engineering; Import and export of goods and technology within the scope of filing. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: None, , Smart Garbage Bin Solution

TOP9
Beijing Beidouxing Technology Co., Ltd
Overall Score4.4 / 5
Est. Date2008-09-09
Registered Capital10000K CNY

Beijing Beidouxing Technology Co., Ltd., with its registered address at Room 302, 3rd Floor, Building 7, No. 18 Anningzhuang East Road, Qinghe, Haidian District, Beijing, is registered with the Market Supervision Administration of Haidian District, Beijing. The legal representative is Sun Quansheng, and the business scope includes technology development, technology promotion, technology transfer, technology consulting, and technology services; Selling computers, software and auxiliary equipment, electronic products, devices and components, instruments and cultural instruments, office machinery, and communication equipment; Professional contracting. (Enterprises shall independently choose their business projects and carry out business activities in accordance with the law; for projects that require approval by law, they shall carry out business activities in accordance with the approved content after obtaining approval from relevant departments; they shall not engage in business activities prohibited or restricted by the industrial policies of this city.). Core products: None, Portable Gas Detector, Odor Gas Detector

TOP10
Shenzhen Osen Purification Technology Co., Ltd
Overall Score4.4 / 5
Est. Date2012-07-04
Registered Capital10000K CNY

Shenzhen Osen Purification Technology Co., Ltd., registered at 401, Building 2, Dayangtian Industrial Zone, Wanfeng Community, Xinqiao Street, Bao'an District, Shenzhen, with the Shenzhen Market Supervision Administration as the registration authority and Liang Lifei as the legal representative. Its business scope includes the development of cloud computing product technology, big data analysis technology, communication and network products, mechatronics products, automation control products, intelligent products, computer software systems, and the development, technical consulting, and services of environmental protection automatic online monitoring instruments; Design, research and development, and sales of environmental sensors, smart environmental detection instruments, environmental protection equipment, hardware system integration, IoT devices, and communication products; Domestic trade, import and export of goods and technology. ^Assembly and processing of artificial intelligence (AI) products, production of communication and network products, mechatronics products, automation control products, intelligent products, computer software systems, environmental protection automatic online monitoring devices, environmental sensors, smart environmental detection instruments, environmental protection equipment, hardware system integration, and production and processing of IoT devices.. Core products: None, Ion Monitoring Device, Environmental Monitoring Equipment

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Nanjing Weisongli Technology Co., Ltd2008-04-11None, Online Monitoring System, 50000K CNYNot Supported
Sifang Optoelectronics (Wuhan) Instrument Co., Ltd2010-04-19None, Modified Atmosphere Packaging Gas Analyzer, Flue Gas Analyzer30000K CNYNot Supported
Shenzhen Wanandi Technology Co., Ltd2010-06-13None, Gas Alarm Controller, Portable Gas Analyzer12000K CNYNot Supported
Cangzhou Zhuoshun Environmental Protection Technology Co., Ltd2022-05-16None, Nitrogen Oxide Analyzer, Voc Online Monitoring System300K CNYNot Supported
Shenzhen Yiyuntian Electronics Co., Ltd2006-01-20None, Portable Gas Detector, Online Monitoring System10000K CNYNot Supported
Qingdao Haite Environmental Protection Technology Co., Ltd2010-03-15None, Online Analyzer Supporting Instruments And Accessories, Laboratory/Portable Water Quality Analyzer10000K CNYNot Supported
Qingdao Xiecheng Innovation Environmental Protection Technology Co., Ltd2022-01-29None, Methane Detector, Six In One Gas Detector10000K CNYNot Supported
Weihai Jingxun Tongdao Electronic Technology Co., Ltd. Jinan Branch2019-05-15None, , Smart Garbage Bin Solution-Not Supported
Beijing Beidouxing Technology Co., Ltd2008-09-09None, Portable Gas Detector, Odor Gas Detector10000K CNYNot Supported
Shenzhen Osen Purification Technology Co., Ltd2012-07-04None, Ion Monitoring Device, Environmental Monitoring Equipment10000K CNYNot Supported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of nitrogen oxide monitoring systems, it is recommended to prioritize confirming key parameters such as range (e.g. 0-1000ppm) and response time (≤ 30 seconds) to ensure matching monitoring accuracy requirements for different scenarios such as industrial flue gas or motor vehicle exhaust.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support or platform statistical information. Such suppliers can usually provide more stable equipment operation and maintenance support.
  • In high temperature and high humidity scenarios such as chemical parks or power plants, extra attention should be paid to the protection level (such as IP65) and anti-interference ability of the system to avoid data bias caused by environmental factors.
  • For long-term continuous operation scenarios such as urban air quality monitoring stations, it is recommended to choose a system with automatic data calibration function and remote diagnostic module to reduce manual maintenance frequency.

Knowledge Base

Q

The use of ultraviolet absorption spectroscopy gas analysis technology and chemometric algorithms is currently an advanced online analysis method for gases such as NOx, with a detection limit of 1mg/m3;; By using holographic grating spectroscopy and diode array detection, a complete continuous absorption spectrum is obtained with high resolution, ensuring low detection limit, small temperature drift, and fast response time; No condensation process, avoid condensation water

Q

The online monitoring system for nitrogen oxide gas is an automated environmental monitoring device used to monitor the concentration of nitrogen oxides (NOx) in industrial emission sources (such as boilers, chimneys, low nitrogen burners, etc.) in real time. It is often referred to as the "invisible sentinel" of air pollution and plays a key role in industrial emission reduction and air quality assurance. ‌ The system achieves gas sampling through automated processes

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs