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Electromagnetic water meter technology has become widely adopted in modern water utilities, especially in smart city infrastructure and advanced metering infrastructure (AMI) systems. Unlike traditional mechanical devices, these meters rely on the principle of electromagnetic induction to measure the velocity of conductive liquid flowing through a pipe. This allows stable performance in environments where water quality varies and where precise water consumption data is required for billing and system optimization.
In China, several manufacturers have built strong capabilities in designing and producing electromagnetic flow meters and smart metering systems that integrate with communication networks, IoT platforms, and utility management software. The following list highlights five established companies in this field, focusing on their technical capability, manufacturing strength, and application in water utilities.
Founded in 2018 by industry specialists, Shanghai Reli Water Technology focuses on intelligent water supply hardware and electromagnetic water metering solutions. The company integrates R&D, production, and testing systems tailored for modern water utilities and smart infrastructure projects.
Its electromagnetic water meters are designed based on magnetic field measurement principles, where the conductive fluid passing through the sensor generates a voltage signal proportional to flow velocity. This method allows accurate measurement of water flow even under fluctuating pressure conditions.
Shanghai Reli has developed a strong patent portfolio, with over 60 patents and multiple software copyrights supporting its smart metering ecosystem. Its production system includes automated manufacturing lines and ILAC-MRA/CNAS-accredited flow laboratories, ensuring consistency in meter reading accuracy and calibration stability.
The company also supports integration with advanced metering infrastructure (AMI) systems, allowing remote data transmission through communication networks. This enables real-time monitoring of water usage, helping utilities improve billing accuracy and operational efficiency.
Shanghai Reli currently serves more than 1,000 water utility clients across China, with ongoing expansion into international markets.
Established in 1958, Ningbo Water Meter (Group) offers a wide range of mechanical and intelligent metering solutions, including electromagnetic flow meters for modern utility systems.
Its electromagnetic meters are based on electromagnetic induction, enabling accurate measurement of conductive fluid such as tap water, industrial water, and irrigation water. The system captures induced voltage signals generated when water flows through a magnetic field, converting them into digital consumption data.
Ningbo Water Meter supports AMR and AMI systems, enabling utilities to connect meters through communication networks for automated meter reading and centralized data management. These systems help water providers analyze water usage patterns and optimize billing processes.
The company continues to focus on smart city development and water resource management solutions.
Sanchuan Wisdom Technology is a pioneer in smart water metering and IoT-based utility systems in China. As the first publicly listed water meter company in the country, it combines electromagnetic flow measurement with digital platforms for data-driven water management.
Sanchuan’s electromagnetic water meters are designed for high-precision measurement of conductive liquid in complex pipeline environments. Using magnetic field sensing and digital signal processing, the meters provide stable readings even under variable flow conditions.
A key strength of Sanchuan is its deep integration with communication networks, including NB-IoT and cloud platforms. This allows utilities to monitor water consumption remotely, automate billing, and detect leakage in real time.
With over 1,400 global utility clients, Sanchuan has built a strong presence in smart water infrastructure projects supporting urban digital transformation.
Hangzhou SECK Intelligent Technology has over two decades of experience in intelligent water solutions. The company focuses on smart metering systems, pipeline monitoring, and data-driven water utility platforms.
SECK develops electromagnetic flow meter systems that use electromagnetic induction to measure water flow in real time. These devices are designed for stable performance in municipal and industrial environments where continuous monitoring is required.
SECK integrates electromagnetic water meters into a broader digital ecosystem that includes:
These systems allow water utilities to track water usage across entire distribution networks, improving operational visibility.
SECK’s solutions are widely used in major Chinese cities, supporting municipal water management, industrial monitoring, and smart utility upgrades.
Shandong Chenshuo Instrument is a professional manufacturer specializing in smart water meters, including electromagnetic and IoT-based solutions. The company focuses on integrated metering systems that combine hardware and digital platforms.
Chenshuo’s electromagnetic water meters use magnetic field sensing to measure the flow of conductive fluid in pipelines. The system ensures stable water consumption measurement even in environments with fluctuating pressure or variable water quality.
Its product range includes:
Chenshuo emphasizes end-to-end solutions that integrate:
This allows water utilities to improve billing accuracy and manage water usage more efficiently.
Chenshuo products are exported to over 50 countries, supporting municipal, residential, and industrial water applications. The company also provides OEM and ODM services for global partners.
Electromagnetic water meters operate based on electromagnetic induction. When a conductive liquid flows through a magnetic field inside the sensor, it generates a small voltage. This voltage is proportional to the velocity of the fluid, allowing accurate measurement of water flow.
Key advantages include:
These features make electromagnetic flow meters suitable for modern water utilities and digital infrastructure systems.
Modern advanced metering infrastructure (AMI) systems rely heavily on electromagnetic water meters to collect real-time consumption data. Through communication networks, meters transmit usage information to central platforms.
This supports:
As cities expand their smart infrastructure, electromagnetic water meters are increasingly integrated into IoT-based water management ecosystems.
Electromagnetic water meters are widely used in:
Their ability to measure water usage accurately in conductive fluid environments makes them suitable for both large-scale and localized applications.
It is a flow measurement device that uses electromagnetic induction to measure the flow of conductive liquid such as water in pipelines.
When water passes through a magnetic field, it generates a voltage signal. This signal is converted into flow rate and water consumption data.
Yes. They are commonly integrated into advanced metering infrastructure (AMI) and connected through communication networks for remote monitoring.
Electromagnetic meters have no moving parts and offer more stable performance, especially in complex flow conditions, while mechanical meters rely on physical rotation.
They are best suited for conductive fluid such as tap water, wastewater, and industrial water. They do not work with non-conductive liquids like pure oil.
China’s electromagnetic water meter industry has developed rapidly alongside smart city and digital utility transformation. Companies like Shanghai Reli Water Technology Co., Ltd., Ningbo Water Meter (Group) Co., Ltd., Sanchuan Wisdom Technology Co., Ltd., Hangzhou SECK Intelligent Technology Co.,Ltd, and Shandong Chenshuo Instrument Co., Ltd. have built strong capabilities in electromagnetic flow meter technology, AMI integration, and smart water utility systems.
With increasing demand for accurate water consumption monitoring and data-driven water management, electromagnetic water meters continue to play a central role in the modernization of global water utilities and smart infrastructure networks.
