Supported OS: Windows 2000, Windows XP, Windows Vista or Windows 7 Minimum PC hardware requirements: Pentium class or higher microprocessor/32 MB RAM/70 MB of free hard disk space (100 MB to install)/serial or USB ports included USB/IR cable included Compatible models: Fluke 280 series/53-II B and 54-II B/ 789/ 1550b/ 1653/180系列 p>