For almost 30 years SONTEC Sensorbau GmbH in Lennestadt/NRW has been developing application-specific sensors for various industries, i.e. the solar and heating equipment, medical and laboratory equipment, apparatus engineering, food & pharmaceutical and mechanical engineering industries. As an OEM we are a system supplier to reputed companies.

The secret of our success? With qualified employees and an extraordinary production depth, our owner-run company is highly flexible both in terms of its customer support and the production process. Thanks to the modular structure of the our sensors, we can address the individual needs of our customers, which means that we can meet your requirements quickly and efficiently.

Our growing team, now over 100, works hand-in-hand to inspire our customers with optimised sensor products. A large number of realised projects and regular training courses ensure a high level of expertise in the fields of development, production and system integration in the customer processes.

Our internal development company SONDEV comes up with new ideas and technological solutions for many requirements. Our main development field comprises sensors with active electronics and analogue or filed bus connections. These and other products are produced by the technological production company SONTEC.

Products under your name

As an OEM we develop, produce and ship specified sensor technologies to a growing clientele of reputed companies. We will brand these customised solutions as specified with your logo, type designation etc. including the individual packaging.

Customised solutions for you

Maintaining a competent dialogue is important to us and is the foundation for every development process. From this stage, we realise the various sensor solutions and accompany our customers through the planning phase up to series maturity, be it for small quantities or large series.

Innovative in-house engineering

The engineers at our development company SONDEV are marked by their innovative power and interdisciplinary expertise and the fact that they never lose sight of cost transparency and efficiency. They are specialised in measuring equipment sensors, automation, industrial electronics and building equipment.
The current portfolio includes:

Temperature sensors

• Capacitive and conductive filling level/level switches
• Conductive and inductive conductivity sensors
• Process adapters
• Evaluation electronics
• System components
• Special solutions (VIP)