Founded in 1972, LEM is the market leader in designing and manufacturing current and voltage transducers worldwide. LEM acts as a pure play components company, designing and producing components for electrical parameter measurements, and offering full-standard or customised (private label) portfolio. LEM supports innovative Smart-ups, following industrial standards, the Six Sigma method, IEC standards and UL.


LEM‘s core products - current and voltage transducers - are used in a broad range of applications including drives & welding, renewable energies & power supplies, traction, high precision, conventional and green cars businesses. LEM’s strategy is to exploit the intrinsic strengths of its core business, and to develop opportunities in existing and new markets with new applications.  Routeco being a well recognised distirbutor in the Automation and electrical equipment market helps LEM to develop these and new markets.

LEM transducers provide the feedback isolated signal required for controlling and monitoring complex currents & voltages from 0.1A (e.g in a drilling machine) to 20000A (e.g. in current monitoring for electrolysis) & up to 6400 V (e.g. in the traction network for railways).

LEM is a mid-size, global company. It has production plants in Beijing (China), Geneva (Switzerland), Machida (Japan) and Sofia (Bulgaria). With its regional sales offices close to its clients’ locations, the company offers a seamless service around the globe.

LEM City answers the demand for an accurate, reliable and easy-to-install energy sensor for future Smart Cities, in order to be at the heart of our planet‘s energy measurements.


The intelligent electricity network (Smart Grid) is the backbone of every Smart City. Today’s cities consume 75% of the energy. Smarter Buildings accounting for 40% of energy use provide customers with information of their usage to make smarter decisions. Smarter equipment is needed for the Smart Grid to provide reliable integration of distributed renewable energies, energy storage and electric vehicle charging stations. LEM improves the Grid by measuring electrical parameters (current and voltage, AC and DC, etc.) allowing control rooms to automate, monitor remotely and share real-time data of their equipment. By working closely together with its OEM customers, LEM provides innovative, accurate, reliable, easy-to install, non-intrusive sensors for better performance on the Grid and within smarter cities.

To find out more information about LEM, visit their website at www.lemcity.com