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Kestrel 4000 Weather Tracker, Grey

Price: $299.99
Suggested Retail: $329.00
Manufacturer: KESTREL
Manufacturer Item #: 4000
Impact Item #: 730650000043
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The Kestrel® 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

Graph and recall trends
Easy to read, backlit display
Time and date
Customize screens to display user-selected measurements
Flip-top impeller cover allows use of other functions while protecting the impeller (hard cases available.)
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

Exterior temperature, humidity, and pressure sensors for fast and accurate readings
Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit.
Includes neck and wrist lanyards, protective pouch and 2 AAA batteries
Waterproof and floats.
2-year warranty
Assembled in the USA
US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074

Features and Specifications
Wind Speed
Accuracy ±3%
Response Time 1 second
Calibration Drift <2% after 100 hours use at 7m/s
Units Display Resolution Range
Knots KTS 0.1 0.6 to 78
Meters per Second 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
Accuracy Temperature ±1°C
Wind Chill ±1°C
Dew Point ±2°C
Heat Index ±3°C
Response Time approximately 1 minute for most conditions
Units Display Resolution Range
Celsius °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 Resolution 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 Resolution Range (Station Pressure)
hectoPascal (mb) hPa 0.1 300.0 to 1100.0
Inches Mercury inHg 0.01 8.86 to 32.48

Altitude, Density Altitude
Units Display Resolution Range
Meters M 1 -500 to 9000
Feet FT 3 -1600 to 30000

Display
Update 1 second
Temperature Range Normal operation from -20°C to 60°C [-4°F to 140°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 1 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). Typical life, 400 hours.
Impeller 25 mm. [1in.] diameter, sapphire bearings, light weight. User-replaceable impeller/housing assembly.
Temperature Sensor Hermetically sealed precision thermistor.
Humidity Sensor Solid state silicon capacitive sensor.
Pressure Sensor Monolithic silicon piezoresistive 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.]
Warranty Standard 2-year covers parts and labor.

Grey Color.