Kestrel Shooters Weather Meter with Applied Ballistics Advanced ballistics solver w/ Applied Ballistics targeting solutions & accurate environmental sensing to provide precise elevation and windage holds. Works with any weapon system or targeting scope. Employs Applied Ballistics custom bullet drag profiles to achieve accurate shots in long range shooting; all of the instant environmental measurements, storage and charting capabilities of the Kestrel 4500 Weather Meter, including wind speed, direction, crosswind, temperature, humidity, pressure and altimeter. Waterproof (IP-67), floats, drop-tested to military standards (MIL-STD-810G), patented; options include case color and Bluetooth wireless data transfer Includes soft pouch, neck lanyard, 2 Energizer Ultimate Lithium AAA batteries and 5-year warranty Used in long range shooting, hunting, precision and competitive shooting, military operations, law enforcement and more