Request InfoPicard IndustriesPicard’s enclosed version of the USB-FilterWheel system offers a compact, quiet and simple method of automating the selection of six 1.0-in. (25-mm) optical filters. It provides a USB-powered method of filter selection unmatched in size, simplicity and cost. The system comes complete with a custom Windows application software that operates on any PC with Windows-XP or higher. A DLL is provided for integrating the device into your own automation. 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