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In 1940, "Rex" gave birth to China's first pH meter and first glass electrode, marking the birth of Chinese analytical instruments. As the first professional manufacturer of analytical instruments in China, "Rex" has been focusing on the innovation and accumulation of electrochemical analysis instruments with more than half a century. "Rex" has unique advantages and status. The product categories are constantly expanding and the technical level is increase. "Rex" has more than 100 kinds of electrochemical analysis instruments, sensors and application solutions, including all kinds of instruments, such as laboratory, online and on-site testing, taking the lead of the domestic electrochemical analytical instrument industry and catching up with the international advanced level.

Hangzhou Antin Power Technology Co., Ltd is located in Hangzhou, China, known as the "Silicon Valley of Paradise". Establishment in 2013. Antin Power is one of the leading manufacturers and suppliers of electricity meters and energy measurement solutions to help worldwide customers visualize all energy usage and improve productivity and energy efficiency. Over the years, Antin Power has developed a wide range of products including DIN rail energy meters, multi-function energy meters, prepaid energy meters, panel meters, etc., which could be widely used in the applications like energy management and monitoring system, sub-billing systems, electrical SCADA system etc.

Shandong Rongxian Instrument Technology Co., Ltd. Was established in 2016 and is located in Linyi, a national innovative city, situated at the intersection of the Yangtze River Delta Economic Circle and the Bohai Rim Economic Circle. It also serves as a leading city in the South Shandong Economic Belt. Leveraging its geographical advantages and R&D capabilities, the company has grown into a leading technology enterprise in the remote meter reading and energy management industry, relying on its profound industry experience, technological innovation, and the "Smart Energy Management Platform. "

Our company is committed to providing the best and most effective products and services.

  Dongguan Engler is a full-industry-chain enterprise integrating independent research and development, manufacturing, and global sales. Our core product portfolio covers flow sensors, pressure sensors, liquid sensors, and intelligent pressure gauges, covering hundreds of models and specifications across liquid level, flow and pressure series to meet diversified and customized market demands.

Through the accumulation of years of industry, we hope that through our efforts to bring China's good water treatment products to the world, China's water treatment environment, relatively more comprehensive, more severe. Therefore, we are confident to provide better service and product prices. We supply metering pumps, water quality instruments, flow meters, water pumps, etc. Our professional ability in the water treatment industry will also provide better technical support to our partners.

Firstrate Sensor Co., Ltd., is a hight-tech joint venture specialized in researching, manufacturing, and sales of sensors. Our products include Pressure Transmitters, Temperature transmitters, Liquid-level Transmitters, Wind Speed and Direction Transmitters, and Intelligent Control Instruments. They are widely used in the field of aviation, aerospace, national defense, military project, engineering machinery, railway, urban railway system, automotive electronics system, HVAC, air compressor, textile, petrochemical, coal mines and other industrial automation control.

ZheJiang Hawsun Intelligent electronic technology Co., Ltd.  

Xi'an ERUN Environmental Protection Technology Group Co., Ltd (hereinafter referred to as "ERUN") was founded in 2014, with a registered capital of 51.8 million yuan, located in the high-tech zone of Xi'an City, China. With 4 subsidiaries, 5 branches and 2 R&D and production bases, the company is a national high-tech enterprise specializing in the R&D, production and sales of high-end instruments and equipment.

NOBOTECH is a high-tech group specializing in the design, R&D, production, sales, and service of environmental monitoring solutions. The company has offices in Shanghai and Guangzhou, with a factory and R&D center in Nanning, Guangxi, covering an area of over 3, 000 square meters. We focus on the independent development of intelligent analytical instruments, integrating technologies such as the IotNobo IoT platform, cloud services, and AI agent models. Our products measure parameters including pH/ORP, dissolved oxygen, conductivity, residual chlorine, ozone, turbidity, COD, ammonia nitrogen, total phosphorus, total nitrogen, chlorophyll, blue-green algae, color, air pressure, wind speed, wind direction, soil temperature and humidity, and soil NPK, etc. NOBOTECH has built a comprehensive solution system for scenarios like water quality monitoring, meteorological monitoring, soil moisture monitoring, and scientific research, providing full-chain digital support for urban governance, ecological protection, industrial production, and public health.

Shenzhen Toprie Electronic Co., Ltd is a high technology enterprise engaged in manufacturing of smart environmental monitoring and data acquisition field.

Henan Bingsheng Industrial Co., Ltd. is a high-tech enterprise engaged in the research and development, production, sales, and service of high-end intelligent sensors and automation equipment, located in the High tech Zone of Zhengzhou City. The company focuses on independent research and manufacturing of online monitoring equipment for environmental protection, water industry, agriculture and other related industries. The products include online water quality sensors such as pH, ORP, conductivity, dissolved oxygen, turbidity, residual chlorine, chlorophyll, blue-green algae, and online soil moisture sensors such as oxygen content, temperature and humidity, and full parameters (temperature+humidity+conductivity+pH+nitrogen, phosphorus, and potassium). The company has cutting-edge technology and independently developed and produced a water quality multi parameter online monitoring instrument, which has advantages such as high accuracy and long service life. It can be customized for design and production according to different customer application scenarios. Leading excellence with wisdom and improving development with creativity, Henan Bingsheng Business Co., Ltd. Always adheres to the development concept of "application first, customer first", and strives to promote the rapid development of water conservancy and agricultural IoT sensing technology!

BESTONE INDUSTRIAL Ltd. was established in 2010 and is located in the city of Hongkong, China.

SKZ Industrial Co., Limited and SKZ International Co., Limited are the members of SKZ group, We are specialized in supply Laboratory Instrument, Scientific instrument, Analytical Instrument, Thermal Analysis, Moisture meter, Gas detector and testing instruments for pulps, paper, cardboards, plastic, rubber and textile.

KEOLL Automation Instrument Co., Ltd. Shandong (hereinafter referred to as "the Company") is located in Liaocheng High-tech Industrial Development Zone and was established on April 28, 2009. The Company specializes in the research, development, production, and sales of instruments and sensors, as well as automation solution design. It is recognized as a Specialized and Innovative Enterprise in Shandong Province, a One Enterprise One Technology R&D Center in Shandong Province, a National High-Tech Enterprise, and a Leading Enterprise in the Cultivation of High-End Equipment Manufacturing in Shandong Province.

CET Electric Technology Inc was established in 1993. As an ubiquitous power Internet of Things and energy Internet service provider with smart power and energy efficiency management as the core, CET has been utilizing electrical technology and micro-processing Technology, IoT, cloud computing, big data and other latest technologies to develop a wealth of practical smart devices, background software, and solution products.

Founded in 2008, we are a high-tech enterprise based in Shanghai. We focus on the R&D, design and production of water quality sensors and intelligent equipment. Backed by a professional team of professors and senior engineers, we own a wealth of independent patents and maintain in-depth cooperative relations with multiple universities. Our fully certified products deliver stable and accurate solutions for environmental protection, medical care, agriculture and other industries worldwide.

Combine Meter Control Co., Ltd., established in 2011 in Zhuhai,

NINGBO ZHIYITONG ENERGY TECHNOLOGY Co., Ltd founded in 1985 as the first enterprise that manufactured heat meters in Zhejiang Province, Ningbo Yonggang Instrument Co., Ltd., a high-tech privately owned enterprise, now has grown into an integrated body of research and development, manufacture, sales and service. Located in the emerging Cixi city on the south bank of Hangzhou Bay in the prosperous Yangzi River Delta Economic Circle and adjacent to the longest cross-continental bridge-Hangzhou Bay Bridge, Zhiyitong benefits greatly from the extensive transport.

OSMeterings Instrument (Shanghai) Co., Ltd. (METERINS) is a China-based flow meter supplier committed to delivering cost-effective industrial measurement solutions. Located in Shanghai, the company integrates production and trade, specializing in flow meters and related instruments for chemical, petroleum, power, and glass industries with decades of project experience.

Jiangsu Sfere Electric Co., Ltd. Integrates R&D, manufacturing, sales and service, and has a complete product ecosystem from smart terminal components, smart equipment to the Internet of Things platform. The company's electrical application solutions empower users with intelligent and digital energy management, and provide reliable data services for users' energy saving and consumption reduction, energy safety and refined energy management.

Wuhan Huadian Hi-Tech Electrical Equipment Co., Ltd. (abbreviated as Huadian Hi-Tech), established in 2007 through the corporatization restructuring of the tertiary subsidiary of the former Wuhan High Voltage Research Institute, is a high-tech enterprise. Its predecessor, Wuhan High Voltage Research Institute Huadian Electric Company, founded in 1991, was among China's earliest manufacturers of high-voltage testing equipment.

Eastron Electronic Co., Ltd. Headquartered in Jiaxing, China (near Shanghai, Hangzhou, Jiangsu), Eastron Electronic is a leading high-tech manufacturer of electricity products and energy measurement solutions.

Beijing Hezhong Huineng Electric Co., Ltd. (abbreviated as: Hezhong Huineng), established in 2016 with a registered capital of 20 million yuan, is a national high-tech enterprise supported by the state, an innovative energy management enterprise, and a Beijing-based "Specialized, Refined, Unique, and Innovative" SME.

Xian Lonn M&E Equipment Co., Ltd. is a wholly owned subsidiary of SHENZHEN LONNMETER GROUP and a high-tech enterprise specializing in the development, manufacturing, and global supply of intelligent measurement instruments.

Yueqing Tainihan Electrical Technology Co., Ltd is located in Xiangyang industrial zone, liushi town, Yueqing City, Zhejiang province, China, which focus on electronic and electro-mechanical meter.

Jiangsu Jiechuang Science and Technology Co., Ltd. Was established in 2000 and is a professional manufacturer specializing in instruments and electrical products. The company is located in Jinhu Industrial Park, Jiangsu Province, China, covering an area of 100, 000 square meters, with a total of 582 employees and total assets nearing 800 million RMB.

ShenZhen StarWSN is a professional liquid level and water quality monitoring instrument company which established in 2016. The company have gathered a number of excellent domestic technical experts in various fields such as automation, electronics, machinery and computer. We focusing on the application of smart sensing technology in drainage network and water level monitoring. The main products include wireless water level transmitter, bubble water level meter, radar water flow meter, radar liquid level guage, wireless pressure sensor, river flow monitoring station and online water quality analyzer etc. The products are widely used in smart city, environmental protection, municipal, chemical, power, sewage treatment, emergency rescue and other fields. Our newest products have the advantages of small size, long lifespan, high stability and reliability.

Daruifuno Environmental Technology Co., Ltd. is headquartered in Suzhou City, Jiangsu Province, China, with an advantageous geographical location, close to Shanghai, in the middle of the Yangtze River Delta, with convenient water, land and air transportation.

Refine On (Hebei) Electric Power Technology Co., Ltd. is strategically located in the Mancheng High-tech Development Zone of Baoding City-a core area renowned for its agglomeration of high-tech enterprises in North China, boasting convenient transportation networks, abundant talent resources, and a supportive industrial ecosystem for technological innovation. Rooted in this fertile ground for development, the company has fully dedicated itself to the high-tech field of power system automation, focusing on the R&D, production, and promotion of cutting-edge products that address the core needs of the power industry. Its product portfolio covers a comprehensive range of solutions, including power system marketing measurement equipment (such as intelligent electric meters, metering verification devices, and load management terminals), operation and maintenance high-voltage testing instruments (like transformer oil BDV testers, high-voltage insulation resistance testers, and partial discharge detectors), distribution network testing tools (including feeder automation testers, fault locators, and cable testing equipment), power consumption inspection devices (such as electricity theft detection instruments and energy efficiency analysis tools), as well as a full line of specialized tools and meters. As a technology-driven enterprise integrating R&D, production, sales, and after-sales service, it has established a one-stop service system to ensure that every link from product conception to user application is seamlessly connected and of high quality.