"The Leupold GX-4i³ Rangefinder offers the most accurate distances from anywhere on the course with advanced infrared laser technology. Leupold's DNA engine provides faster measurements for increased accuracy on all shots within 1/10 of a yard. This new DNA engine works in all conditions (fog/rain) and can read distances with all background textures/colors.The Leupold GX-4i³ golf rangefinder also features TGR and Club Selector (which can be disabled for tournament play) that provides club recommendations based on personal hitting strengths, slope and current weather conditions. It's pretty cool and only Leupold has it.• Red OLED readout within 1/10 of a yard• Leupold DNA Technology• 6x Magnification• True Golf Range with Club Selector technology• Accurate within 1 yard on readings over 100 yards• Fastest, most accurate reading in the industry• Legal for tournament play (with TGR and Club Selector disabled)• PinHunter technology• One-touch scan mode• Prism Lock technology• Fog mode• Accuracy within one-foot at 450 yards to the pin and 700 yards to a tree• Waterproof design• 7.8-oz• Limited 5 year Leupold warranty• Dimensions 3.8 x 3 x 1.4"