Serious photographers and creative pros require a high degree of color accuracy; from capturing images, to digital editing and printing, Spyder3Pro delivers. This third generation colorimeter comes equipped with new state-of-the-art optical design and photo-centric user interface providing accurate, reliable and consistent color. Spyder3Pro gives you more precise control over white point and gamma, new ReCAL option cuts re-calibration time in half and SpyderProof function brings you a new level of color control to help you save time, money and achieve color excellence. Spyder3 increases light sensitivity 400%. It also features the largest screen sample area or aperture in the industry resulting in improved accuracy on LCD screens and a faster calibration time. Two superior attachment methods - large area suction cup or counterweight - can be used interchangeably to suit the needs of any photographer. Included: Datacolor Spyder3 colorimeter, Desktop Cradle, Spyder3Pro Software CD, Screen Cleaning Packets, Quick Start Guide, 2-Year Warranty, Free Online Support. System requirements: Windows XP 32/64, Vista 32/64, Windows 7, Mac OS X (10.3 or higher), USB, Color monitor resolution 1024x768 or greater, 16-bit video card (24-bit recommended), 128MB of available RAM, 100MB of available hard disk space.