EKO Instruments has a vast history of innovation developing high quality products for general meteorology as well as atmospheric science applications. As the only pyranometer and pyrheliometer manufacturer with calibrations accredited under ISO 17025, our customers can rest assured that their equipment was made and tested to the highest level possible. EKO has the largest range of solar radiation instrumentation for atmospheric and Geophysical research. Our MS-80 series pyranometer has achieved the shortest response of all thermopile based sensors, allowing for accurate measurements of highly variable sky conditions. Building from the success of the MS-80, our fast response MS-57 pyrheliometer and STR21/22G allow for user friendly and easy to install broadband solar monitoring systems. In addition to these operational products, our handheld spectroradiometer, the MS-730, is an ideal product for your phenological studies. If prolonged autonomous measurements are needed then we offer the MS-711, a highly advanced field deployable grating spectroradiometer. The MS-711 can be easily combined with our Rotating Shadow band system to allow for superior solar spectral irradiance research as well as remote sensing of atmospheric constituents.