EKO Instruments

Since 1927 EKO has employed its latest technologies to develop meteorological instruments, physical analyzers and other high quality equipment to cover a wide range of the requirements of both science and industry. Meteorological instruments include pyranometers, sunshine duration meter, sun tracker, UV radiometer, and our new grating-based portable spectroradiometer. Over the years, our company has accumulated a great deal of experience in various measurement technologies, permitting us to not only supply products, but also to provide a variety of high quality services from maintenance and technical support service to early design research, final design and manufacture of global measuring systems preparing us to meet the unlimited opportunities expected in the coming age.

Company details

95 South Market Street, Suite 300 , San Jose , CA 95113 USA

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Business Type:
Industry Type:
Monitoring and Testing - Meteorological Monitoring
Market Focus:
Globally (various continents)
Year Founded:

Established in 1927, EKO Instruments has now accumulated over 90 years of history. We are deeply and sincerely grateful for the tremendous support we have received from all those that made this possible.

Beginning with scientific instrumentation for meteorological and environmental applications 85 years ago, EKO Instruments now includes three core business areas, which are remote sensing, evaluation and measurement of photovoltaic performance, and radiation and spectral measurements. To explore the potential of these core areas EKO is working closely with industry and research organizations to develop new products for the future. In terms of material characterization and analysis, we not only offer advanced and highly reliable overseas products, but also are focusing on developing our own proprietary products.

In the future, we aim to increase the level of technology by combining our core technology in optical measurement solutions for photovoltaic power generation. Furthermore, we hope to use this technology for applications in other fields, thereby exploring new markets. To prepare for our next step, we are strengthening exports of our proprietary products. In 2007, we established EKO Instruments USA Inc. in the United States. In April 2008, we established EKO Instruments Europe B.V. in The Netherlands. In addition, by leveraging the comprehensive strength of our Technical Center and Customer Support Center, which provide services and solutions involving alternative energy and material characterization and analysis, we aim to be an enterprise that can contribute to protecting the global environment and preventing global warming. As we face our upcoming 100th anniversary, EKO Instruments is working vigorously to develop measuring instruments and to create new value that meets the expectations of all our customers.

Calibration laboratory ISO 17025

EKO Instruments Co. Ltd. calibration laboratory are accredited and certified by PJLA (Ref: #74158) to perform pyranometer and pyrheliometer calibrations in accordance with the requirements of ISO/IEC17025, which are relevant to calibration and testing.

EKO offer a unique manufacturer calibration service for pyranometers and pyrheliometers in-house. Based on the applied calibration methods EKO provides the best quality solar sensor calibrations compliant to the international standards defined by ISO/IEC17025 / 9847 (Indoor method) and 9059 (Outdoor method), as defined by the scope of calibrations.

ISO/IEC17025 provides a globally accepted basis for laboratory accreditation that specifies the management and technical requirements. With calibrations performed at the EKO Instruments laboratory we enable our customers to:

  • Clearly identify the applied calibration methods and precision
  • Be traceable to the World Radiation Reference (WRR) through defined industrial standards:
    • ISO9846 Calibration of a pyranometer using a pyrheliometer
    • ISO9847 Calibration of field pyranometer by comparison to a reference pyranometer
    • ISO9059 Calibration of field pyrheliometers by comparison to a reference pyrheliometer
  • Obtain repeatable and reliable calibration test results through consistent operations yearly examined independently to assure strict compliance to the requirements.

Our clients will obtain a high level of confidence when purchasing an ISO/IEC17025 calibrated sensor. Our Accredited lab is regularly re-examined to ensure that they maintain their standards of technical expertise.

Quality Management Statement ISO 9001

The EKO Instruments Ltd. Headquarters in Tokyo Japan has been continuously ISO 9001 certified since its first assessment in 1994.

ISO 9001 originated in Europe in response to the growing market need for a set of standardized guidelines for quality management and quality assurance. It is currently adopted in over 90 countries and is applicable to a wide selection of industries. Its certification is used as a means to identify companies that visibly focus and commit to ensure the best possible products and services to their customers. It is a completely voluntary certification that is achieved only through a rigorous registration audit and regular external surveillance audits by third-party ISO assessors.

EKO undergoes regular audits by third-party ISO assessors and its own employees. The results of these audits are utilized to improve and strengthen our quality management system. ISO 9001 certification is a worldwide recognition of EKO's consistent and superior quality in customer service, as well as an assurance of high quality products that include solar radiation & photonic sensors, photovoltaic evaluation, atmospheric & plan science, heat flux & thermal conductivity, material characterization & analysis products.

Our quality program is evident from our growing satisfied customer base. EKO strives to remain a leader in its market segment by continuously improving its products and services. We share the benefits of our ISO 9001 certification with our customers and take pride in our commitment to complete customer satisfaction.

Environmental Policy Statement ISO 14001

EKO Instruments Ltd. headquarters recognizes the importance of environmental protection and is committed to its business responsibly and operation in compliance with all legal requirements relating to the supply of high quality products and services. It is the organisation’s declared policy to operate with and to maintain good relations with all regulatory bodies. It is the organisation’s objective to carry out all measures reasonably practicable to meet, exceed or develop all necessary or desirable requirements and to continuously improve environmental performance through the implementation of the following topics:

Assess and regularly re-assess the environmental effects of the organisation’s activities

Training of employees in environmental issues

  • Minimise the production of waste
  • Minimise material wastage
  • Minimise energy wastage
  • Promote the use of recyclable and renewable materials
  • Reduce and/or limit the production of pollutants to water, land and air
  • Control noise emissions from operations
  • Minimise the risk to the general public and employees from operations and activities undertaken by the organization
  • This Policy is communicated to all employees, suppliers and sub-contractors and is made available to the public