Reddit reviews Kestrel 4500 Weather & Environmental Meter/Digital Psychrometer Altimeter Anemometer with Data Logging & Digital Compass and Blue Tooth

Rugged weather tracker for military personnel, HAZMAT first responders and other professionals who need to accurately monitor and log environmental measurements, with Blue tooth and Night Vision back lightingMeasures and records wind direction, headwind/tailwind, crosswind, wind speeds, temperature, heat stress index, relative humidity, dew point temperature, wet bulb temperature, wind chill, barometric pressure and trend, altitude, density altitudeGet all the data you need to know your conditions, shift strategies and ensure safety all while recording a downloadable data log. (2900 data-point memory); Add a vane mount and tripod for a complete weather stationProtective flip-open impeller cover, replaceable impeller, large backlit LCD, waterproof, drop tested, accurate NIST-Traceable measurements, Bluetooth wireless data transfer and Night Vision Preserving (NV) Backlight optional4.8 x 1.9 x 1.1 in., 3.6 oz., includes replaceable CR2032 coin cell battery, lanyard; Made in USA and backed by a 5-year warranty