Sadana Brothers manufactures Direct Vision Spectroscope with Adjustable Slit. Sadana Brothers is an ISO 9001: 2008 certified offering a wide range of Laboratory and Scientific Equipments including Heat Measuring Instruments, Light [Optics] Instruments, Mechanics Instruments, Sound Measuring Instruments and Laboratoryware. The Direct Vision Spectroscope with Adjustable Slit is used for quantitative examination of spectral composition of white light, radiant bodies etc. The Direct Vision Spectroscope comes in a wooden box and has a length of 130 mm when fully drawn out.