Skywatch Geos 11 Handheld Weather Station

Agriculture; control of wind speed and direction before using sprayed chemicals. Agri-foodstuff; control of storage environment (temperature, humidity).
Automobile; high-performance engine mechanics (density altitude).
Aviation; reading of the Flight Level, height, finesse, pressure, altitude, altitude variation, etc..
Rappelling; check the height when rappelling down.
HVAC; air flows and temperature measurements.
Sporting events; control of weather conditions during meetings, contests validation.
Trekking; recording of extreme conditions (mountains, deserts, polar spots), warning of sudden weather changes, wind chill indication.
Civil engineering; security on sites, labor working conditions.
Geology; altitude and stratum measurement.
Military; heat stroke prevention, long range shooters, skydiving, artillery, weather conditions checking in case of chemical attacks. Click Here for a pdf on military heat stress.
Firefighters; managing the risk of forest fire propagation (wind speed and direction).
Reptiles; control and maintenance of livable conditions (temperature and humidity).
Rescue teams; evaluation of weather conditions for rescue and survival operations (coast guards, air rescue, etc.).
Science; meteorology, environment, aerodynamic, etc..
Sports and leisure; mountain bikes, climbing, alpinism, hiking, bow shooting, fishing, golf, scale models, kites, etc..
Free flight; hang gliding, paragliding, skydiving, balloon, base jump, wing flight.
Volcanology; crater height measurement, risk evaluation of gas emanation, etc.

Measures:

Wind Speed- current, average, maximum
Wind Direction- electronic compass
Ambient Temperature- current, windchill, maximum, minimum, water
Relative Humidity- current, maximum, minimum, dew point
Barometric Air Pressure- absolute, relative, maximum, minimum
Altitude- maximum, minimum

Important data calculations:

Windchill
Dew Point
Relative and Absolute Pressure (QFE/QNH)
Weather Tendencies
Density Altitude
Flight Level
Flight Finesse
Height
Variometer
Earth's Magnetic Field in Tesla Unit

The Geos 11 is loaded with many unique features:

Electronic Compass- analogical and digital
Three Data Recording Modes- via integrated flash card memory
PC Computer Download- optional contactless adapter and software plus real-time data viewing
Bright LED Light- operates on separate battery
Replaceable Ball Impeller- rotates to protect impeller blades
Exposed Sensors- for instant readings

Other Features:

EL Backlight
Aluminum Case
Included Lithium Battery
Spare Battery
Mineral Glass Screen
Time, Date, Chronograph
Weather Resistant