Kestrel 4000 Pocket Weather™ Tracker™

The Kestrel® 4000 Pocket Weather™ Tracker™ is the next generation of weather monitoring. You can now measure EVERY major environmental condition, easily and accurately, right in the palm of your hand. The chart mode allows users to recall and graph up to 250 measurements, along with the date and time of storage. Barometric Pressure, Altitude, Density Altitude, Temperature, Humidity, Wind Speed, Wind Chill, Dew Point, Wet Bulb, and Heat Index... All in one pocket sized instrument.
Also available 4000NV

FEATURES

•  Graph and recall trends
•  Easy to read, backlit display
•  Time and date
•  Customize screens to display user-selected measurements
•  Hard cover allows use of other functions while protecting the impeller
•  Automatically store measurements, even when the unit is turned off
•  Manually store measurements with the press of a button
•  Chart up to 250 measurements
•  Impeller can be replaced without tools essure sensors for fast and accurate readings
•  Includes neck and wrist lanyards, protective pouch and 2 AAA batteries
•  Waterproof and floats
•  1-year warranty
•  Assembled in the USA

SPECIFICATIONS
Wind Speed
Accuracy	±3%
Response Time	1 second
Calibration Drift	<2% after 100 hours use at 7 m/s
Units	Display	Res'n	Range
Knots	KTS	0.1	0.6 to 78
Meters per Seconds	M/S	0.1	0.3 to 40
Kilometers per Hour	KM/H	0.1	1.0 to 144
Miles per Hour	MPH	0.1	0.7 to 89
Feet per Minute	FPM	1	59 to 7877
Beaufort Force	BEAU	1	1 to 16
Temperature
Response Time	approximately 1 minute for most conditions
Accuracy
Temperature	±1°C
Wind Chill	±1°C
Dew Point	±2°C
Heat Index	±3°C
Units	Display	Res'n	Range
Celcius	°C	0.1	-29 to 70
Fahrenheit	°F	0.1	-20 to 158
Relative Humidity
Accuracy	±3%
Response Time	Approximately 1 minute for most conditions
Calibration Drift	±2% over 24 months (can be field calibrated)
Units	Display	Res'n	Range
Percent	%	0.1	5 to 95%
Barometric Pressure
Accuracy	±3hPa (between -10°C and 60°C)
Calibration Drift	±1hPa over 12 months (can be field calibrated)
Units	Display	Res'n	Range
HectoPascal (mb)	hPa	0.1	870.0 to 1080.0
Inches Mercury	inHg	0.01	25.70 to 31.90>
Altitude, Density Altitude
Units	Display	Res'n>	Range
Meters	M	1	-500 to 9000
Feet	FT	3	-1638 to 27420

DISPLAY

•  Update: 1 second
•  Temperature Range: Normal operation from -20°C to 60°C [-4°F to 150°F]. Below -20°C [-4°F], accurate readings may be taken by keeping the unit warmer than -20°C [-4°F] and exposing it for the minimum time necessary to take a reading (less than one minute).
•  Storage Temperature: -30°C to 60°C [-22°F to 140°F].
•  Auto Shutdown: After 15 minutes of no button presses. (This feature can be disabled.)

PHYSICAL

•  Battery: Two AAA Alkaline batteries (included).
•  Impeller: 25 mm. [1 in.] diameter, sapphire bearings, light weight. User-replaceable impeller/housing assembly.
•  Temperature Sensor: Solid state silicone capacitive sensor.
•  Pressure Sensor: Monolithic Silicon Piezoresisitive sensor.
•  Dimensions: 12.7 x 4.5 x 2.8 cm [5 x 1.8 x 1.1 in.]
•  Weight: 102 g. [3.6 oz.]

Kestrel Portable Vane Mount

The Kestrel Portable Vane Mount is an ingeniously simple accessory designed for extreme light weight and portability. The Vane Mount assembles in seconds and the precision pivot and lightweight vane extension allows the unit to spin freely in the slightest of breezes. The incorporated level ensures that the Vane Mount is installed correctly and that direction readings will be accurate. Paired with the Kestrel's 2000 data-point memory log, extensive data can be collected including wind speed and direction.
Together, the Kestrel 4500 and Vane Mount weigh less than 8 ounces (227 g.) and pack into a compact 2 x 6 inch (5 x 15.25 cm) case. The Vane Mount can be affixed to any tripod or the Kestrel Lightweight Monopod for a complete weather station you can easily pack into remote locations.