Avoid pesticide spray drift, maximize application effectiveness, and minimize waste with this handheld weather meter. Pesticide drift can damage nearby crops and poses a threat to people, livestock, wildlife, and the community. The 3550AG with Bluetooth® connectivity instantly captures and logs accurate, field-level weather data with just one click. Pair the meter with the Kestrel LiNK app to wirelessly view, share, manage, and export weather data from a mobile device. The meter measures wind speed, wind direction, temperature, dew point temperature, heat stress index, wind chill, Temperature Humidity Index (THI), wet bulb temperature (psychrometric), relative humidity, altitude (barometric), barometric pressure, pressure trend, and Delta T (difference between dry bulb temperature and wet bulb temperature; indicates evaporation rate and droplet lifetime when spraying). Features a data hold function and an easy-to-read backlit LCD display. Drop-tested to MIL-STD-810G. Waterproof to IP67. Includes CR2032 battery, lanyard, and protective cover.