SPAN has two Spectroradiometers available for loan to staff and researchers. These devices are portable field instruments used in the measurement of light. These instruments split incident light into separate narrow bands within the range of 300nm to 1100nm and 350nm to 2500nm respectively. They have an integrated light source and leaf clip for plant measurements. Example research applications for this instrument are in the areas of ecology, remote sensing, chemistry, viticulture, and assisting in the spectral calibration of MADIS.