The objective of this project is to obtain 2 identical integrating spheres with all supporting components necessary to make traceable spectroradiometric measurements within the visible-near Infrared (VISNIR) to shortwave infrared (SWIR) spectrum. The equipment will be able to provide an absolute uniformity spectral radiance output that is traceable to a national metrology standard such as NRC’s Metrology standard or NIST in the U.S.. Further, due to the nature of the potential use of the sensors – day/night/cloud/full sun, the system requires the ability to easily vary the output to suit expected conditions.