RPG SE600 Golf Laser Rangefinder Slope Edition PIN SENSING TECHNOLOGY: Allows for easy targeting of the flag, separating from any background (trees, houses, etc). SLOPE and NON-SLOPE MODES (NOW TOURNAMENT LEGAL): As of 2016 (rule14-3), rangefinders with slope are tournament legal, provided the slope function is turned off during tournament play. RPG's Slope Edition SE600 allows for easy toggling back and forth between slope and non-slope modes. Now, you can HAVE SLOPE WHEN YOU WANT, TURN IT OFF WHEN YOU DON'T. LARGER TARGET DISPLAY (cross hairs): Larger target circle for easier flag recognition (even for those with less than steady hands). OTHER IMPORTANT FEATURES: 60 day money back guarantee, 1 year warranty, 6X magnification, 650 yard range, water resistant, scan mode (allows scanning multiple targets while holding the button), uses CR2-3V battery (not included).