Yankee Environmental Systems (YES)

YES - Model TSI-880 - Total Sky Imager - Brochure

The Model TSI-880 Total Sky Imager is an automatic, full-color sky imager system that provides real-time display of daytime sky conditions. At many sites, the accurate determination of sky conditions is a highly desirable yet rarely attainable goal. Traditionally, human observers reported sky conditions, resulting in considerable discrepancies from subjective observations. In practice, the use of human observers is not always feasible due to budgetary constraints.