Believe it or not, weather conditions can make or break ballistic performance, especially at distance. The Kestrel 5700 Elite Weather Meter with Applied Ballistics provides accurate wind speed and direction, temperature, humidity, heat index, pressure, and altitude measurements, allowing you to make educated adjustments for precise shot placement. Applied Ballistics technology offers exact holdover and windage measurements based on the unique bullet profile, offering corrections for wind drift, bullet drop, Coriolis force, aerodynamic jump (slant deviation), and spin drift deflection. Compatible with most Bluetooth-enabled smartphones, tablets, and rangefinders, this Bluetooth-enabled weather meter boasts wireless transmission of data to and from compatible devices, eliminating any guesswork for quick, confident adjustments. Operating on just 1 AA battery, the Kestrel 5700 Elite features an HD, backlit display with a user-friendly, screen-navigated interface for frustration-free operation you can depend on. Manufacturer model #: 0857ALFDE. Bluetooth-enabled for wireless transmission of data to compatible devices Applied Ballistics technology HD, backlit display Intuitive user interface with on-screen navigation Multilingual interface Scratch and breakage-resistant window