Special Features:

Ball rotates in any direction; max ball speed 500 rpm; horiz mtg; cmos; op temp 0 to p50 degrees c; 1 yr warranty; super strong case; moisture resistant circuit bd; w/interface cable and instructions; serial female sub d 9 pin; industrial trackball; thermoplastic matl; wt 15 oz; double sided cable; 2 in diameter ball; phenolic matl; ball densi type 1.70; h85 rockwell ball hardness; max tracking force 1.5 oz

Properties:

A device which includes a sphere mounted in a small open-topped box. The sphere is hand-operated by rotating it in a backward, a forward, or a sideway direction while maintaining the device in a fixed location. The movement of the sphere generates a signal which may be used to move a cursor and/or tracking symbol on the face of a display, such as a cathode ray tube; to input data into an electronic system; and/or to control the operation of a system. It may or may not include additional input devices, such as switches or variable resistors.