| Display Update |
1
second |
| Display
Size |
Reflective 3 1/2
digit LCD, 9 mm (0.36 in.) 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) |
| Environmental Sealing |
Electronics enclosure
IP67 - water resistant to 1 m. (3 ft.) |
| Shock
Resistance |
Drop tested to 2 m.
(6 ft.) |
| Auto
Shutdown |
45 minutes after last
key press |
| Battery |
User-replaceable
CR2032 coin cell; typical life, 400 hrs |
| Impeller |
25 mm (1 in.)
diameter, sapphire bearings, light weight; user-replaceable without
tools |
| Temperature Sensor |
Hermetically sealed
precision thermistor |
| Humidity
Sensor |
Silicon based
capacitive sensor |
| Dimensions |
unit: 122 x 42 x 20
mm (4.8 x 1.7 x 0.8 in.)
cover: 122 x 46 x 26 mm (4.6 x 1.8 x 1.1
in.) |
| Weight |
unit: 2.3oz
(65gr)
cover: 1.3oz (37gr) |
| Operating
Temperature |
LCD readability is
lost above 50ºC (122ºF) and below -15ºC (5ºF). 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 -20ºC to
80ºC (-4ºF to 176ºF) |
| Temperature Limitations |
The Kestrel
temperature sensor is able to measure temperatures as low as -30C (-22F)
and as high as 70C (158F). The Kestrel is able to display wind chill
measurements lower than -30C, depending on wind conditions. It is also
able to display heat index measurements above 70C, depending on humidity
conditions. The Kestrel display will not function if the display itself
gets below -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. |
| Warranty |
Standard 2-year
warranty covers parts and labor. |
