The GX-2i3 features True Golf RangeTM (TGR®) and Club SelectorTM. TGR provides ranging information matched to your personal hitting strength, the slope of the shot, and current environmental conditions, automatically recommending the appropriate club for each shot. With exclusive PinHunter 3 Laser Technology and Fog Mode, it's laser accurate in any condition. The addition of Prism Lock Technology means unmatched ranging, even with unsteady hands. All this comes in one rugged, compact, and completely waterproof package.