Gigahertz-Optik is a manufacturer of innovative ultraviolet visible near infrared (UV-VIS-NIR) light measurement instrumentation for industrial, medical, and research applications. Its calibration laboratory for light measurement quantities provides the most extensive range of light measurement calibrations available from industry. Headquartered in Türkenfeld, Germany, the U.S. subsidiary is located in Newburyport, Massachusetts, and a worldwide network of representatives serve the international customer base.