Leupold GX-4 Golf Rangefinder over 100 years of experience in the optics and surveying industries to redefine golf rangefinders with a simple principle: customize them to the individual golfer�s needs. With Leupold�s exclusive PinHunter� laser technology, Prism Lock� capability, Fog mode, and three selectable aiming reticles, the GX-4 utilizes cutting edge microprocessing circuitry and an advanced infrared laser to accurately and consistently hunt down the pin in virtually any weather conditions. Taking customization to the extreme, the removable Smart Key� of the GX-4 adds the incredible benefit of True Golf Range� (TGR�) and the Club Selector, giving you the confidence you need to play the right shot every time. TGR provides ranging information matched to your personal hitting strength, the slope of the shot, and current conditions to accurately compensate for uphill shots that play long and downhill shots that play short. The Club Selector� feature combines your specific hitting strength and TGR to the target, automatically recommending the appropriate club for each shot. Simply input the distance obtained with three specific clubs and the GX-4 will do the rest. Prism Lock technology affords unmatched accuracy by using highly reflective prisms already incorporated into many course features and pins to obtain a high intensity return to your GX rangefinder. With Prism Lock, holding the rangefinder steady becomes much less of a concern, and you can be assured your distance measurement is exact. Rugged, compact, and completely weatherproof, Leupold�s GX rangefinders are sure to shave strokes from your game. Welcome to the future of golf. PinHunter Technology Try ranging a pin or fluttering flag from over 300 yards away! It's not a problem for a GX golf rangefinder from one of the most premier range finder manufactures Leupold. When it comes to hunting down and ranging the pin, Leupold has a wealth of knowledge and experience. For the last century Leupold has been building precision optics for the most demanding of recreational, military, and commercial uses. Every GX golf rangefinder has been precisely calibrated to fire a laser beam exactly at the target in the crosshairs. The proprietary beam geometry improves laser returns from the pin and the advanced GX ii software accurately separates those returns from objects in the background. You can be sure the results you receive from the GX are the most precise available from any golf rangefinder on the market. Fog Mode Rain or shine, many golfers hit the links regardless of conditions, that's why we desinged Fog Mode. Most rangefinders give measurements from the first target returned, which in some cases is the fog between you and the pin. Your GX will cut through the weather and provide fast and accurate measurements to get you on the green. Scan Mode The GX has scan mode when you want multiple readings in one quick sweep. Just hold down the power button and the display will continuously update with accurate line-of-site measurements.