Near-infrared Spectrophotometer with calibrations for oat quality analysis. This near-infrared (NIR) spectrophotometer analyzes the chemical and physical properties of a material by shining near-infra... Near-infrared Spectrophotometer with calibrations for oat quality analysis. This near-infrared (NIR) spectrophotometer analyzes the chemical and physical properties of a material by shining near-infrared light (780 nm to 2500 nm) onto a sample and measuring how much light is absorbed or reflected. See attached specifications document for additional details.