Request InfoGigahertz-Optik Inc.Gigahertz-Optik Inc.'s X1-RM multimeter, a rack-mountable version of the X1 series handheld universal optometer, can be used with a variety of detectors. It combines a powerful microprocessor and electronics for integration into standard 19-in. housings. The multimeter can operate up to four photodiode detectors, with all four signals displayed on its four-line display with on/off backlighting. It is compatible with most of the company's light-detector heads for flexible use over a wide range of radiometric, photometric and colorimetric measurement applications. 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