Custom OEM AC Power Measurement Device Manufacturer & Factories

Leading the Future of Electrical Safety and High-Precision Energy Monitoring with Advanced Magnetic Component Solutions Since 1993.

Global Industry Status of AC Power Measurement

The global market for AC Power Measurement Devices is undergoing a radical transformation. As nations strive for "Net Zero" emissions, the demand for precise energy monitoring has shifted from simple billing to complex, real-time data analytics. Today, industrial facilities, data centers, and smart cities rely on these devices to optimize power consumption and ensure grid stability.

In the current industrial landscape, the integration of IoT (Internet of Things) and AI-driven diagnostics has made high-precision current transformers (CTs) and Rogowski coils indispensable. From monitoring the health of high-voltage transmission lines to managing the delicate load balancing of EV charging networks, the accuracy of measurement components determines the efficiency of the entire system.

Emerging Trends in Power Sensing

Technological convergence is the primary driver of current trends. We are seeing a significant move towards miniaturization—where devices must provide higher accuracy in smaller footprints to fit into compact modular switchgears. Furthermore, the rise of renewable energy sources like solar and wind has increased the need for sensors that can handle non-linear loads and high-frequency harmonics.

Another critical trend is the shift towards Split-Core and Flexible Rogowski technology. These designs allow for non-intrusive installation, meaning power systems do not need to be shut down for sensor integration. This "zero-downtime" requirement is now a standard demand from global tier-1 industrial clients.

27+ Years Experience
50M Annual Capacity
410+ Expert Staff
40k Sqm Workshop

Global Procurement & Localized Applications

Smart Buildings

Procurement teams for commercial real estate focus on sub-metering solutions. Our split-core CTs allow for easy retrofitting in existing distribution boards to monitor floor-by-floor energy usage.

Industrial Automation

Factories require heavy-duty current sensors for motor protection and load analysis. Our high-precision Hall sensors and Rogowski coils provide the reliability needed for 24/7 operations.

Renewable Energy

Solar inverters and wind turbine controllers demand sensors that can withstand harsh outdoor environments. Our 11kv outdoor casting resin transformers are built for extreme durability.

Global enterprises are increasingly looking for OEM/ODM partners who can offer more than just a product. They need engineering expertise to customize turn ratios, phase shift compensation, and physical dimensions. As a specialized manufacturer, Fujian Smrtr Technology Co., Ltd. (Zentar®) bridges this gap by providing tailored magnetic solutions that meet international standards like CE, UL, and RoHS.

About Fujian Smrtr Technology Co., Ltd.

Fujian Smrtr Technology Co., Ltd. Zentar® is a premier global manufacturer of magnetic components dedicated to electrical safety and power measurement. Founded in 1993, we have spent nearly three decades perfecting the art and science of current sensing technology. With our primary operating facilities in Xiamen, we employ a dedicated workforce of approximately 410 professionals.

Our core expertise lies in the consulting, design, and manufacturing of current transformers, RCD fused connection units, and wireless energy monitors. We don't just sell components; we provide workable solutions. Our team, led by renowned professors and 20 senior engineers, ensures that every product meets the rigorous demands of modern electrical infrastructure.

Read More About Our Journey

Advanced Manufacturing Infrastructure

Our 40,000-square-meter workshop is equipped with state-of-the-art automatic winding machines and precision testing equipment.

Wire Wrapping
Wire Wrapping
Rubberized Cloth
Rubberized Cloth
Silicon Steel Sheet
Loaded With Silicon Steel Sheet
Soldering Tin
Soldering Tin
Testing
Testing
Automatic Coil Winding
Automatic Coil Winding Machine
Laser Marker
Laser Marker
Coil Winding
Coil Winding Machine
Automatic Soldering
Automatic Soldering Machine
Eight Axis Winding
Eight Axis Winding Machine
Coil Winding Machine
High-Precision Coil Winding Station

Our Competitive Advantages as a Leading China Factory

Choosing Smrtr Technology as your OEM AC Power Measurement Device partner offers distinct advantages in the global market:

  • Unmatched R&D Capability: Our team doesn't just follow blueprints; we innovate. With 20 senior engineers, we provide rapid prototyping and technical validation for complex custom requirements.
  • Rigorous Quality Control: We implemented ISO9001 in 2002 and have since evolved to meet IATF 16949 standards. This ensures that our products meet the zero-defect requirements of the automotive and industrial sectors.
  • Scalable Production: With an annual capacity of 50 million magnetic components, we can handle everything from boutique custom orders to massive global rollouts.
  • ERP-Driven Efficiency: Introduced in 2008, our ERP system ensures short lead times, precise inventory management, and transparent order tracking.

Our location in Xiamen, a global hub for electrical component manufacturing, allows us to leverage a robust supply chain, reducing costs without compromising on material quality. Whether it's high-permeability nanocrystalline cores or specialized resin casting, we have direct access to the best raw materials at competitive prices.

We specialize in magnetic ring cores and current transformers for electrical safety and power metering. Our products are the first line of defense against electric shock and electrical faults in modern power systems.