Established in Tokyo in 1927, EKO began with the distribution of instruments for the Japanese meteorological and environmenta ... l market. Since the beginning renewable energy and environmental topics have been our focus, directing our strategy and evolution over 90 years. Today, we offer a unique range of high precision broadband and spectral radiometers, as well as various I-V measurement devices for the evaluation of photovoltaic components, systems, and energy plants. All products are manufactured with a high emphasis on quality and, as the only solar sensor manufacturer with its own ISO 17025 accredited testing laboratory for the calibration of pyranometers and pyrheliometers, our partners and clients enjoy added confidence in the precision and reliability of our measuring instruments and calibration methods. Visit our website or contact our global team to find out how EKO smart instrument synergies and innovative services can optimize the efficiency and quality of your photovoltaic systems and meteorological research. read more