Pyrheliometers are direct (normal incidence) solar radiation sensors, used in outdoor PV / CPV and CSP system performance monitoring, solar energy surveys and scientific meteorological and climate observations. A pyrheliometer is usually used in tracker-mounted operation, to keep the instrument aimed at the sun.
Hukseflux offers a complete range of pyrheliometers. High data availability is attained by heating of the front window. This suppresses dew and frost deposition. Top model DR30-D1 pyrheliometer has superior window heating and an internal tilt sensor to check tracker performance.