Systronics Spectrophotometers 106 are a set of microcontroller based having a facility in accuracy, reliability and time saving Wide spectral coverage and high resolution is achieved by using a powerful light source and a grating-based monochromator. A conveniently placed control enables the user to quickly orient the grating to provide monochromatic light of the desired wavelength. The electronic processing circuits and power supplies are solid-state/LSI-based to ensure high accuracy, stability and long life. Two different models, catering to the varying needs of end-users are presented here.