The global landscape for Intelligent Electric Metering Current Transformers (CTs) is undergoing a radical transformation. As the world pivots toward decentralized energy systems and smart grids, the demand for high-precision current sensing has skyrocketed. In modern industrial facilities, CTs are no longer simple passive components; they are the "eyes and ears" of energy management systems. From North America's aging grid modernization to the rapid industrialization in Southeast Asia, intelligent metering is the cornerstone of Energy 4.0.
Commercial sectors, including massive data centers and high-tech manufacturing hubs, now require real-time data to optimize load balancing and prevent costly downtime. The integration of IoT (Internet of Things) with current transformers allows for predictive maintenance, ensuring that potential faults are identified before they escalate into system failures.
Fujian Smrtr Technology Co., Ltd. (Zentar®) is a world-class leading manufacturer of magnetic components for electrical safety and power measurement. Founded in 1993, we have over three decades of deep-rooted experience in the industry. With our primary operating facilities strategically located in Xiamen, we employ approximately 410 dedicated professionals committed to excellence.
Our company provides customized service and expertise in consulting, design, and manufacturing of current transformers, RCD fused connection units, and wireless energy monitors. We are not just an exporter; we are a technological partner for global enterprises seeking reliable power metering solutions.
Smrtr Technology boasts a team led by professors and 20 senior engineers. This powerhouse of intellectual property allows us to continuously provide customers with workable solutions and cutting-edge technical support for complex metering challenges.
We implemented ISO9001 in 2002 and have since evolved our quality control procedures under the rigorous IATF 16949 standard. This ensures that every transformer leaving our factory meets international safety and performance benchmarks.
Our 40,000-square-meter facility is equipped with a series of accurate testing equipment and automatic winding machines. With ERP introduced in 2008, we guarantee short lead times and strict process traceability.
Our production line integrates automation with meticulous human oversight to ensure zero-defect manufacturing.








Our split-core current transformers and Rogowski coils are essential for energy efficiency audits. They allow for sub-metering cost allocation without interrupting power supply, making them ideal for retrofitting older buildings in Europe and North America.
In heavy industries, intelligent CTs provide the data necessary for dynamic energy consumption analysis and peak load management. This helps large factories in regions like Latin America and the Middle East reduce their carbon footprint and electricity costs.
We specialize in technologies for protection against electric shock and electrical faults. Our RCD components are widely used in residential and commercial developments globally to ensure high standards of safety compliance.
As a premier China Intelligent Electric Metering Current Transformer Exporter, we offer unique advantages that localized manufacturers often cannot match. Our integration into the world's most robust electronics supply chain allows us to source high-grade silicon steel and precision copper at competitive rates, passing those savings directly to our global partners.
Whether you need a thousand units or a million, our 50 million annual capacity handles any scale. We offer OEM and ODM services, tailoring secondary output (mA, mV, or digital) and mechanical dimensions to fit your specific metering hardware.
We understand that different regions have different requirements. Our products are designed to meet UL, CE, and IEC standards, ensuring that when you import from us, you are importing reliability and legal compliance.