Combining onsite wind and weather measurements with an extremely accurate ballistics calculator, the all Kestrel 2700 keeps the options simple while amping up the performance capabilities to take long-range shots with confidence. It measures accurate environmentals such as wind speed, wind direction, air pressure, and temperature. The G1/G7 Ballistics Solver features an applied ballistics library of lab tested bullet data which is then applied to the Ballistics Ultralite ballistics engine. Expect extreme accuracy out to the max range of 875 yds. Upload a gun profile for your specific rifle and bullet in the 2700 using the free Kestrel LiNK Ballistics app which allows you to view solutions remotely and easily build, store, and transfer gun and bullet data. Much more than a wind and weather meter this unit is a powerful and effective tool for making first-round hits. It is made in the U.S.A..