The Skywatch Xplorer 4 Windspeed Meter is an excellent quality meter designed in Switzerland. This Skywatch Explorer 4 is compact and rugged unit not only measures windspeed and temperature, but has an altimeter / barometer and digital compass (which is useful in determining wind direction). With a press of the button, scroll through the air pressure for the past 48 hours, an essential feature for judging changing conditions. Waterproof to 1m. A balanced impellor is integrated into the Skywatch Xplorer 4 wind meter. Ideal for all outdoor sports and activities where measuring wind speed is important, things sailing and because its got an altimeter hill walkers, kite flyers, kite surfing, snow kiting, land boarding, mountaineering, paragliding and other extreme wind sports.

►  Windspeed in knots, mph, kmh, ft/m or m/s.
►  Max windspeed 
►  Temperature 
►  Windchill Factor calculation
►  Digital compass 
►  Barometric air pressure 
►  48 hour history of pressure 
►  Altitude 
►  Backlight 
►  Stainless steel back 
►  Replaceable battery 
►  Water resistant
►  Temperature is measured in °F or °C.
►  Compass is degrees off North (i.e. 90° is due East)
►  Pressure is measured in hPa (hectopascals)
     1 hectopascal (hPa) ≡ 100 Pa ≡ 1 mbar.
     10 hPa ≡ 10 mbar or inHg (inches of Mercury)
►  Altitude is in feet or meters

The Skywatch Explorer 4 has 9 Operating Modes:

1. Instand windspeed measurement with 'max' speed reached displayed
2. Instand windspeed measurement with current temperature displayed
3. Instand windspeed measurement with wind chill factor displayed
4. Instand wind speed measurement with compass in degree
5. Instand wind speed measurement with altitude displayed
6. Instand wind speed measurement with relative pressure (QNH) or absolute pressure(QFE)
7. History of pressure (tendencies)
8. History of relative pressure (QNH)
9. History of absolute pressure (QFE)

The Skywatch Xplorer Wind Testing Gauge includes a Lanyard and a replaceable Lithium battery

Skywatch Xplorer4 Wind Meter Range and Accuracies: 
 
Windspeed: Up to 94 mph (150 kph) +/- 3%
Temperature: -58° to 212°F (-50° to 100°C) +/- 0.5°F (0.3°C)
Compass: 0° to 359° off N +/- 5° 
Barometeric. to 31.00 inHg +/- .01 inHg 
Altitude. to 26,247 ft +/- 10 ft. 
Battery: Type: 1 x CR Long-life Lithium installed and replaceable
The Xplorer4 is designed in Switzerland.
Weight: 50 grammes