The most incredible weather station in a superbly compact size! If you have always wanted to know the conditions on the go, this is the instrument for you!

Features:

• Windspeed
  
• Relative humidity and dewpoint
  
• Altitude
  
• Current barometric pressure
  
• 16-hour pressure graph
  
• Severe Weather audio alarm (if the barometric pressure falls or rises 6 millibars over a three-hour period)
  
• Temperature/Wind Chill/Heat Index
  
• Relative humidity, barometer and altimeter functions can be recalibrated, if required.
  
• Water resistant
  
• Floats
  
• Threaded for tripod mounting
  
• Includes replaceable Lithium battery and lanyard
  
  Specifications:
  
• Windspeed range: 0.4-89MPH; Accuracy: +/-3%
  
• Wind Chill range: -22A° to +158A°F/-30A° to +70A°C; Accuracy: +/-2A°F/-1A°C
  
• Dew Point range: -31.2A° to +155.8A°F/-35.1A° to +68.8A°C; Accuracy: +/-3A°F (2A°C)
  
• Heat Index range: +69.8A° to +155.8A°F/+20.9A° to +105A°C; Accuracy: +/-4A°F (3A°C)
  
• Humidity range: 0-99%; Accuracy: +/-3%
  
• Barometer range: 400-1100hPa or 11.8-32.5 inHg; Accuracy: +/-3hPa (millibars)
  
• Altitude range: -650 to 9000 meters
  
• Optional Units: Wind - Knots, Beaufort, MPH, KPH, F/M, M/S; Temp - F or C; Barometer - InHg or hPa (millibars)
  
• Operating Temperature: +5A° to +122A°F/-15A° to +50A°C
  
  Dimensions - 5.875' x 2.1' x 0.85' (closed)