The product provides life science and pharmaceutical researchers with a high-performance, reliable and high-speed plate reader. It integrates all the optics, robotics and positioning equipment into a design statement that communicates a sense of high quality and precision. The product focuses visual attention on the user interface areas such as the plate stackers and the optical path tower, making a statement of accuracy, control and the progressive application of technology. Operating procedure involves placing a series of plates loaded with samples on the plate stacker and allows the computer controlled operation to scan each as it travels from the input stacker into the detection housing and deposits it into the output stacker after reading results.