Environmental sensors for meteorology and energy technology from the heart of Europe in the Rhine-Main region
Environmental sensors for meteorology and energy technology from the heart of Europe in the Rhine-Main region
Pioneers of Measurement Technology
In use worldwide since 1982
For more than four decades, we have been committed to the promotion of renewable energies as a clean, efficient, and sustainable energy source. To this end, we develop and manufacture high-precision sensors and measurement systems that are used worldwide in the solar energy sector, research, and numerous industrial applications.
Our products are characterised by their outstanding reliability and durability, even under extreme conditions.
Our drive is clear: a new energy world, sustainability, and the continuous development of our products tailored to the needs of our customers.

Highest precision with our reference cell
Our reference cell is the cornerstone of precise photovoltaic measurement technology and offers outstanding accuracy and reliability. Continuously developed since 1989, it is manufactured to the highest quality standards and serves as a key metrological basis for the performance evaluation of solar modules and the yield monitoring of photovoltaic systems.
Thanks to proven manufacturing techniques and special calibration procedures, our reference cell delivers extremely stable and reproducible measurement results. It is indispensable for laboratories, testing centres, and companies that require the highest accuracy in the characterisation of solar radiation and energy conversion.
By using our reference cell, you ensure that your measurements comply with international standards and remain consistently reliable – a key component for research, development, and industrial applications.
Highest precision with our reference cell
Our reference cell is the cornerstone of precise photovoltaic measurement technology and offers outstanding accuracy and reliability. Continuously developed since 1989, it is manufactured to the highest quality standards and serves as a key metrological basis for the performance evaluation of solar modules and the yield monitoring of photovoltaic systems.
Thanks to proven manufacturing techniques and special calibration procedures, our reference cell delivers extremely stable and reproducible measurement results. It is indispensable for laboratories, testing centres, and companies that require the highest accuracy in the characterisation of solar radiation and energy conversion.
By using our reference cell, you ensure that your measurements comply with international standards and remain consistently reliable – a key component for research, development, and industrial applications.

Our products are in use worldwide
Our products represent the highest precision, quality, and reliability. They are successfully used in a variety of applications around the world.
Our products are in use worldwide
Our products represent the highest precision, quality, and reliability. They are successfully used in a variety of applications around the world.