United to make a measurable Change.
Driven by precision, our Measurement Technology Division brings together four specialized brands under one shared mission: delivering high-performance measurement and transformer technologies for a wide range of applications.
Each brand contributes its own expertise, strengths, and market focus while sharing the same commitment to precision, innovation, and quality.
Together, we deliver more than products—we provide a global network of expertise, working alongside our customers to develop solutions tailored to their specific requirements.
REDUR specializes in the development and manufacturing of current transformers as well as analog and digital transducers. Its comprehensive product portfolio ranges from clip-on and wound current transformers to cable current transformers, combined AC/DC current sensors, high-frequency current transformers, and current transformers with integrated transducers.
Backed by decades of expertise, REDUR manufactures some of the most compact current transformers on the market and has established itself as a technology leader through innovations such as the industry-defining 333 mV output, setting new standards in modern current measurement.
ISMET is one of Europe’s leading manufacturers of high-quality transformers, reactors, and filters, serving demanding applications across the globe. Founded in 1902, the company supports industries including industrial machinery, renewable energy, marine, and power distribution with both standard products and customized solutions.
The portfolio includes low-voltage transformers weighing up to 5 tonnes, as well as air- and liquid-cooled reactors and filters designed for the highest performance requirements.
Since 2022, ISMET has operated as an independent brand within the REDUR Group, combining more than a century of engineering expertise with innovative solutions for modern power applications.
Founded in Nuremberg in 1923, TRAMAG began with transformers for the toy industry before expanding into customized low-voltage transformer solutions for a wide range of industrial applications. Over the decades, the portfolio grew to include advanced reactor and filter technologies, enabling TRAMAG to serve emerging markets with increasing demands for power quality in drive systems, test equipment, and energy technology.
Today, TRAMAG is recognized as one of Europe’s leading specialists in inductive components for medical technology, including transformers for MRI power supply systems. Whether manufacturing single units or high-volume production, every solution is engineered to meet customer-specific requirements with uncompromising reliability and quality.
Since 2024, TRAMAG has operated as an independent brand within the REDUR Group.
PM SMS (Special Measuring Systems) specializes in the development and manufacturing of zero-flux current measurement systems for precise current sensing from DC up to 400 kHz.
As the first company in the world to introduce zero-flux current measurement technology in the early 1970s, PM SMS set a new benchmark for precision. Today, its systems are regarded as the gold standard for high-accuracy current measurement and are trusted by customers worldwide in scientific research, industrial applications, and medical technology.
Let’s create Change. Together.
We do not just deliver products – we deliver solutions.As your solution provider, we understand the challenges of modern current measurement. Working closely with you, we develop tailored DualFlux solutions that are precisely matched to your application, performance requirements, and integration needs.