Kestrel 3000 Pocket Wind Meter Accurate, rugged handheld weather and heat index meter with large, replaceable impeller, responsive temperature sensor and temperature-corrected humidity chamber Measures heat stress index, relative humidity, dew point temperature, wind chill, air/water/snow temperature, current/average/maximum wind speeds on large, clear LCD Waterproof (IP-67), floats, drop-tested to military standards (MIL-STD-810G), patented Includes slip-on protective cover, neck lanyard, CR2032 coin cell battery and 5-year warranty Used in athletic training, coaching, occupational safety & health, agriculture, crop harvesting, barn ventilation, livestock temperature monitoring, trailer safety, chicken coops, urban & wildland firefighting, storm chasing, meteorology, pet health monitoring and more