The Sciencetech 9010 is a 200 mm focal length asymmetric Czerny-Turner scanning monochromator. This model has an f/3.5 aperture, although a faster f/2.6 is available as a separate product. The manual selector dial with readout for wavelength selection allows for quick and accurate selection of wavelength. Up to two gratings are supported on its sine drive rotating turret. A manual knob on top of the monochromator allows the user to select the active grating. Two bilaterally adjustable slits for its input and output port are included. The 9010 and 9010F scanning monochromators offer optimum resolution for all spectral ranges and low stray light levels. A motorized upgrade is available for this monochromator. If you wish to purchase the motorized version please indicate this at the time of order.