Andover, MA – May 4, 2020 – MKS Instruments, Inc. (NASDAQ: MKSI) has announced the Ophir® FluxGage™ 604 compact measurement system for LED luminaires. This new series features four additional color sensors evenly arranged in the bottom of the device delivering further x,y, and CCT data as well as the illuminance. Within seconds the user gets an overview of the color and overall uniformity of the measured light. This allows direct evaluation of LED chips or optical assemblies used for color mixing and beam shaping within the design process in order to find the optics that provide the optimal light for a particular application. The system can also be used in end-of-line LED luminaire production applications to instantly detect issues, ensuring high quality product standards are met. The Ophir FluxGage measurement system also measures total luminous flux, color parameters and flicker.