Improve your long-range shooting using the handheld Kestrel 5700 Ballistics Weather Meter with LiNK. This weather meter measures wind, altitude, temperature, and all critical ballistic variables. Bluetooth wireless capabilities connect to compatible rangefinders, scopes, and mobile apps for reliable data transmission using the free Kestrel LiNK Ballistics app. The app features remote and multitarget viewing, gun/bullet profile loader, and an applied ballistics G1/G7 bullet library. This meter measures wind speed and direction, temperature, wind chill, relative humidity, heat stress index, dew point temperature, wet bulb temperature, barometric pressure, altitude and density altitude. Powered by 1 lithium AA battery (included). Includes protective pouch and neck lanyard. Manufacturer model #: 0857BLTAN. Handheld weather meter Measures wind speed and direction, temperature, wind chill, relative humidity, and more Onboard Bluetooth technology Compatible with FREE Kestrel LiNK Ballistics mobile app Includes protective pouch and neck lanyard