Industrial Trackball Pointing Device

Desktop Optical Trackball For Industrial Pointing Device Quick Detail: 1. Optical metal desktop trackball 2. Waterproof, dust-proof and vandal resistant 3. CE,FCC,ROHS,IP65 certificate 4. USB or PS/2 interface 5. Trackball Frequency: X:>200dpi Y: >190dpi Description: Features Stainless steel trackball Water, dust and vandal resistant Etching and inking lettering Brushed surface Compatible with WINDOWS98/ME/2000/XP Designed for public, outdoor, industrial and other extreme