The Kestrel with Hornady 4DOF Weather Meter quickly and accurately determines long range holdovers and windage corrections to get you on target with first round hits. This all-in-one unit combines real-time environmental measurements with the 4DOF ballistics calculator for a rugged and dependable, compact yet powerful long-range shooting tool. No more DOPE cards, guessing at the wind, or being unsure where your bullet will hit when you change elevation. Features of the Kestrel 5700 Ballistics Weather Meter with Hornady 4DOF Ballistics Calculator - Hornady 4DOF® SolverDrop-Tested to MIL-STD-810GData Log Graph ViewBacklight - Switchable White/RedBattery Life IndicatorHigh Contrast, Sunlight Readable Monochrome LCD DisplayG7/G1 SolverTarget Speed Estimator ToolSupports Mil, MOA, Clicks, in, and cmHornady Bullet Library*Connect with LiNK Compatible Range FindersWaterproof to IP67 (3'/1M for 30 minutes)Integrated Flip Open Impeller CoverMeasurementsAltitude (Barometric)Barometric PressureCompass DirectionCrosswindDensity AltitudeDew Point TemperatureHeadwind/TailwindHeat Stress IndexRelative HumidityStation Pressure (Absolute Pressure)TemperatureWet Bulb Temperature (Psychrometric)Wind ChillWind Speed/Air Speed Kestrel 5700 Ballistics Weather Meter with Hornady 4DOF & LiNK 0857HLSND