Tiger Woods uses the Full Swing KIT launch monitor. The KIT is a portable, radar-based launch monitor that tracks an array of club and ball data parameters. It is said to achieve the same reliability that Woods gets with his indoor Full Swing simulator.
The KIT was developed in collaboration with Woods himself, who sought a launch monitor that he could take to the range and that he could count on as much as his indoor simulator. The KIT is said to be accurate to within 1 mph of clubhead speed and 1 yard of carry distance. It also tracks other data points, such as ball speed, launch angle, spin rate, and side spin.
The KIT is available for purchase for $4,999. It is a more affordable option than some other launch monitors on the market, such as the TrackMan 4, which costs $25,000.