The Spectrometer–chemists use it to determine the constituents of molecules, astronomers use it to determine the constituents of stars and physicists use it to investigate the structure of the atom. Not bad for an instrument for which few people can name the inventor (David Alter, with some important later enhancements by Joseph von Fraunhofer).
PASCO offers this high-quality spectrometer that allows students to perform accurate prism and grating spectrometry. High-quality, large-aperture optics produce sharp spectral images, while precision machining allows for precise rotation and accurate measurement. The Student Spectrometer is most popular in upper division labs, where precision and durability are equally important.