This Kestrel Bluetooth Shooters Weather Meter has a Horus Ballistics Calculator and an olive drab finish. Customize up to five targets for location, distance, direction, declination and winds as well as being able to create, select and store multiple guns and rounds with full ballistics characteristics. Measures: altitude, barometric pressure, crosswind, density altitude, dewpoint, headwind. tailwind, heat stress index, relative humidity, temperature, wet bulb temperature, wind chill, wind direction, and wind speed. Features 5 languages, bluetooth wireless data transfer, data upload, and patented impeller and sensor technology. Kestrel 4500 Olive Drab Weather Meter 0845HBOLV