The FLS1000 is a modular photoluminescence spectrometer for demanding applications in photophysics, photochemistry, material sciences and life sciences. The instrument can be used for both steady state and time-resolved spectroscopy, has high sensitivity and can be configured for spectral measurements from the ultraviolet to the mid-infrared, and for lifetime measurements spanning time resolutions from picoseconds to seconds. Sensitivity is >30,000 : 1 for the standard water Raman measurement. The FLS1000 comes with new proprietary electronics modules and a new all-in-one software suite, Fluoracle®. New, redesigned monochromators provide high stray light rejection, accuracy and resolution, and increased automation.