Abstract: A code based analysis of the user’s performance in selection tasks using a space mouse in comparison with a standard device is presented in this paper. A new contact free gesture based human interaction with declared point to point accuracy has been used in space mouse. Systematic evaluation of this new system as not been done prior to this point. Accurate tacking of hand fingers, and the track movement was proved testing, accuracy is last when the hand moves in to a position obstructing the controller’s ability to view.