Instrument Systems GmbH has introduced the MAS 40 modular mini-array spectrometer with SpecWin analysis software and an integrated USB port. It is available in three models that cover the spectral range from 320 to 950 nm, with resolution of 2.5 nm. The detector is a CCD line sensor with 2048 pixels, enabling a wide-signal dynamic range, which can be further expanded with the use of density filters. A variety of calibrated measuring adapters can be linked to the device via the fiber optic cable to determine luminous intensity and flux as well as illuminance. The device measures the spectrum and calculates color coordinates, temperature and saturation. Applications include spectral analysis of light sources and determination of spatial radiation patterns.