Specifications for Kestrel^® 3000

Kestrel^® Pocket Wind^™ Meter's

Display - Wind Speed

Operating Modes
 ► Moving 3-sec. average ( ), maximum 3-sec. gust since power on (MAX) or average since power on (AVG).

Display Update
 ► 1 second

Units
 ► Knots (KT), meters per second (M/S), kilometers per hour (KM/H), miles per hour (MPH), feet per minute (FPM) and Beaufort force (B).

·····················································································································································································································································································································

Performance - Wind Speed

On-Axis Accuracy
 ► Greater of 3% or least significant digit.

Off-Axis Response
 ► 1% @ 5^○, -2% @ 10^○, -3% @ 15^○.

Resolution and Range
 ► KT, M/S, KM/H, or MPH: resolution 0.1; max display range 199.9. FPM: resolution 1.0 below 1,999, 10 above 2,000 (auto-ranging); max display range 19,990.

Calibration Drift
 ► <2% after 100 hours use at 7 M/S (~14 KT, 25 KM/H, 16 MPH or 1,400 FPM).

Minimum Speed
 ► 0.3 M/S (~0.6 KT, 1 KM/H, 0.7 MPH or 60 FPM).

Maximum Speed
 ► 40 M/S (~78 KT, 144 KM/H, 89 MPH, or 7,830 FPM).

·····················································································································································································································································································································

Display - Temperature, Wind Chill, Humidity, Heat Index and Dew Point

Operating Modes
 ► Temperature; wind chill; relative humidity; heat index; dewpoint.

Units
 ► Degrees Centigrade (^○C), degrees Fahrenheit (^○F), percent (%).

Resolution
 ► 0.1 Humidity sensor can be recalibrated in the field.

Temperature/Wind Chill Display Update
 ► 1 second.

·····················································································································································································································································································································

Performance - Temperature, Wind Chill, Humidity, Heat Index and Dew Point

Accuracy and Resolution
 ► Temperature and wind chill, +/-1.0 ^○C; relative
 ► humidity +/-3% between 5% and 95% relative humidity;
 ► dew point temperature, +/-2 ^○C; heat index, +/-3 ^○C.

Humidity Sensor Response Time
 ► 1 minute.

·····················································································································································································································································································································

Environmental

Sealing
 ► Electronics enclosure IP67 - water resistant to 1 m. (3 ft.). Floats.

Shock
 ► Drop tested to 2 m. (6 ft.).

Operating Temperature
 ► LCD readability is lost above 60^○C (122^○F) and below -15^○ C (5^○F).
 ► Accurate readings may be taken beyond these temperature limits by exposing the unit for the minimum time necessary to take and record measurement (less than one minute).

Storage Temperature
 ► Recommended -40 ^○C to 60 ^○C (-40 ^○F to 140 ^○F).

·····················································································································································································································································································································

Physical

Buttons
 ► Two sealed tactile rubber buttons control all functions.

Auto Shutdown
 ► 30 minutes after last key press.

Battery
 ► User-replaceable CR2032 coin cell. Typical life 250 hours.

Impeller
 ► 25 mm (1in.) diameter, sapphire bearings, light weight. User-replaceable without tools.

Temperature Sensor
 ► Hermetically sealed precision thermistor.

Humidity Sensor
 ► Silicon based capacitive sensor.

Display
 ► Reflective 3 1/2 digit LCD, 9mm (0.36 in.) digit height.

Dimensions
 ► 122 x 42 x 14 mm. (4.8 x 1.7 x 0.6 in.); case,
 ► 117 x 46 x 19 mm. (4.6 x 1.8 x 0.7 in.); lanyard, 4.8 m. (56 in.).

Weight
 ► Unit, 43 g. (1.5 oz.); case 23 g. (0.8 oz.).

··················································································································································································································································································································································································································