J&D is a leading manufacturer of top-quality transducers specializing in voltage and current sensors. We provide innovative technology solutions for various industries, including smart grid, renewable energy, and e-mobility.

Our high precision split core current transformers, split core DC current transducers, and flexible Rogowski coils offer accurate measurements for a wide range of applications.We offer a variety of current sensors with different sizes and ratings, catering to our customers' needs.
Our advanced technology supports energy measurement, monitoring, protection, and more.

We are committed to providing seamless worldwide service and support, delivering cutting-edge magnetic solutions that add value to your business. Contact us today to learn how we can meet your voltage and current sensor requirements with J&D's quality and reliability.


At our core, we have a highly skilled and dedicated team of design engineers, production technicians, and sales professionals who are passionate about driving the power quality and technical revolution forward. With a shared objective of delivering reliable, accurate products that meet our customers' requirements, we work collaboratively and enthusiastically to ensure that our solutions exceed expectations.

We are committed to staying ahead of the curve, continually pushing the boundaries of what is possible and providing the best possible service to our customers.


J&D specializes in providing high-quality solutions for measuring electrical parameters.
We maintain strict standards, such as ISO 9001, ISO 14001, and ISO 45001 certifications,
to ensure that our products meet the highest quality and environmental responsibility standards.

Our advanced voltage and current sensors cater to various applications.
We are committed to helping clients save time and resources with innovative solutions.
Building lasting relationships, exceeding expectations, and delivering unmatched value are our priorities.

As a market leader, we support clients throughout the process.
Our state-of-the-art solutions help customers achieve their goals, save resources, and provide exceptional value to their customers.


- Innovation

We push beyond the confines of traditional technology, exploring new frontiers and harnessing cutting-edge advancements to deliver the highest-quality solutions.

- Customer drive

At our core, we are driven by our commitment to our customers. As a trusted partner, we are dedicated to collaborating with our partners to advance their products and meet their ever evolving needs, all while ensuring cost-effectiveness.

But our mission goes beyond just that. We are also passionate about promoting the efficient use of electricity on a global scale, and are committed to doing our part in creating a sustainable future for all.

- Safety

At J&D, safety is a top priority, and we are proud to announce that our product line has been certified for safety certification UL/EN/CSA 61010-1and UL2808 certification standards. As a dedicated safety partner, we are constantly striving to advance our products and develop innovative solutionsthat prioritize the safety of our partners and end users.

We believe that safety is an essential aspect of achieving cost-effective solutions, and we prioritize it in everything we do.

Contact J&D
Learn more
Trade Show
Learn more
Partner Company
Learn more