Anemometer + Temperature, Compass, Barometer and Altimeter - Skywatch Xplorer 4 by JDC

WINDSPEED:


All Xplorers
Balanced impeller is integrated into wind meter
The impeller is magnetized, producing a magnetic field when rotating which is measured internally
Damage to the impeller is unlikely due to the small opening, but repair can be performed

TEMPERATURE:


Xplorers 2, 3, 4
Internal thermometer is attached to the stainless steel back
Temperature adjusts quickly, although drastic temperature changes may require several minutes for accuracy
Temperature is read quickly by touching the back to an object of the same temperature
Water temperature is read quickly by submerging the unit briefly

DIGITAL COMPASS:


Xplorer 3 and 4
Designed to be used in vertical position
Will display windspeed and compass simultaneously
Electronic calibration before use ensures absolute precision (easy process)
Calibration is essential for proper use
Accurate wind direction can be found in this way - we introduced this feature in 2004

ALTITUDE:


Xplorer 4
Altitude is based on an initial set altitude and a change in air pressure (this is true of ALL altimeters)
Drastic air pressure variance (weather front) will impact altitude readings (usually occurs over 12+ hours)
Several seconds is needed to adjust to new altitude
The highest accuracy is achieved when the altitude is properly set, a change in altitude is more than 10 feet, and several seconds are allowed for adjustment
For example, the Xplorer 4 may be moved from one level of a house to another, and a change of 10 feet will be recorded (standard ceiling height)


AIR PRESSURE:


Xplorer 4
Air pressure is read in either relative or absolute air pressure
Absolute air pressure is a precisely defined measurement, just like temperature
Absolute air pressure is measured within .10 inHg, and cannot be adjusted