|
Spec
Summary: |
|
|
Measurement: |
Current,
Max and Avg Wind Speed |
|
Units of
Measure: |
mph, fpm,
kts, Beaufort Force |
|
Accuracy: |
±3% of
reading
or ±0.1 m/s |
|
Range: |
0.7 to 89
mph
(0.3 to 40 m/s) |
|
Measurement: |
Temperature, Wind Chill, Heat Stress, Dew
point |
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Units of
Measure: |
°F, °C |
|
Accuracy: |
±2°F
(±1°C) |
|
Range: |
-20 to
158°F
(-29 to 70°C) |
|
Measurement: |
Relative
Humidity |
|
Units of
Measure: |
% |
|
Accuracy: |
± 3% or
scale |
|
Range: |
5 to 95% |
|
Measurement: |
Pressure |
|
Units of
Measure: |
hPa, inHg |
|
Accuracy: |
± 3 hPa |
|
Range: |
300.0 to
1100.0 hPa
(8.86 to 32.48 inHg) |
|
Measurement: |
Altitude |
|
Units of
Measure: |
feet,
meters |
|
Accuracy: |
± 30
meters (at standard atmospheric conditions) |
|
Range: |
-1500 to
30000 feet
(-500 to 9000 meters) |
|
Display
Update: |
1 second |
|
Display Size: |
Reflective
3 1/2 digit LCD, 0.36 in. (9 mm) digit
height |
|
Off-Axis Wind
Speed Accuracy: |
-1% @ 5º
off-axis; -2% @ 10º; -3% @ 15º |
|
Calibration
Drift: |
< 2% after
100 hours use at 7 M/S (~14 KT, 25 KM/H, 16
MPH or 1,400 FPM) |
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Environmental
Sealing: |
Electronics enclosure IP67 - water resistant
to 3 ft. (1 m.) |
|
Shock
Resistance: |
Drop
tested to 6 ft. (2 m.) |
|
Auto Shutdown: |
45 minutes
after last key press |
|
Battery: |
User-replaceable CR2032 coin cell; typical
life, 400 hrs |
|
Impeller: |
1 in. (25
mm) diameter, sapphire bearings, light
weight; user-replaceable without tools |
|
Temperature
Sensor: |
Hermetically sealed precision thermistor |
|
Pressure
Sensor: |
Monolithic
Silicon Piezo resistive sensor |
|
Dimensions: |
unit: 4.8
x 1.7 x 0.8 in. (122 x 42 x 20 mm)
cover: 4.6 x 1.8 x 1.1 in. (122 x 46 x 26
mm) |
|
Weight: |
unit:
2.3oz (65gr)
cover: 1.3oz (37gr) |
|
Operating
Temperature: |
LCD
readability is lost above 122ºF (50ºC) and
below 5ºF (-15ºC). Accurate readings may be
taken beyond these temperature limits by
exposing the unit for the minimum time
necessary
to take and record measurement. |
|
Storage
Temperature: |
Recommended -4ºF to 176ºF (-20ºC to 80ºC) |
|
Temperature
Limitations: |
The
Kestrel temperature sensor is able to
measure temperatures as low as -22F (-30C)
and
as high as 158F (70C). The Kestrel is able
to display wind chill measurements lower
than
-22F, depending on wind conditions. It is
also able to display heat index measurements
above 158F, depending on humidity
conditions. The Kestrel display will not
function if the
display itself gets below 5F (-15C).
However, if the unit is kept in a pack or
pocket or other
warm area, the display itself should not get
this cold. |
|
Patents: |
5,783,753;
5,939,645; Other patents pending. |
|
Certification: |
Wind
speed, temperature and humidity measurements
are tested at the factory before packaging.
Factory certification is available for
additional fee.
Product is CE
certified |
