The Matrix FT-NIR spectrometer from Bruker Optics Inc. features a watertight housing and permanently aligned optics. Utilizing the built-in and external multiplexer optics, this single instrument can monitor up to 48 reactions. A variety of probe adaptations is available for determining analyte concentration in liquid, emulsions, powders and pellets. Analog digital I/O process software manages data acquisition and communication with process control systems via an assortment of protocols. The PC and multiplexer are available in a 19-in. format for use in standard racks and enclosures.