Beckman Coulter Multisizer 3 MS3 Particle Size Analyzer w/Windows 7 Pro CPU. Good physical and working condition. Includes: Beckman MS3, 50um Aperture, Trap, Stirrer, Electrode, New Waste Bottles w/(used) sensors, W7 Pro Computer, MS3 3.53 Software, Communication and Power Cables, and 30 Day Guarantee. For more details and pictures please contact us.