Introducing the ALL NEW Kestrel Pocket Weather Meter with wireless
Bluetooth® technology is now an OPTION(see option menu below).

Kestrel Weather Meters with integrated Bluetooth® technology offer the
ultimate in portable and accurate environmental data. A complete,
hand-held weather station- measure and log numerous critical
environmental conditions; wind speed, wind direction, temperature,
humidity, barometric pressure, altitude, density altitude, wet bulb,
dewpoint and more.

Now, both real-time and logged data can be transferred wirelessly and
automatically to a laptop or PDA, making a Kestrel 4000 series weather
meter the perfect tool for virtually any job that requires quick and
reliable weather data.

Bluetooth® wireless technology is available throughout the entire Kestrel 4000 series, including specialty Kestrel units.
Break Boundaries with Kestrel Bluetooth®.

Kestrel Pocket Weather Meters have specifically customized our
Bluetooth® integration to answer the unique needs of our customers:

Streamline your work and reduce your equipment in the field -
wireless data transmission eliminates the need for a separate interface
and cabling.

Every Bluetooth® Kestrel will include custom communication software
designed to quickly and easily configure your data transmission
frequency, download logged data, graph data, and transfer data to other
applications.

Data transmission range adjustment allows you to maximize power to
communicate with your Kestrel at up to a 30 feet range, or reduce power
for closer, more secure operation.

Individual unit ID’s ensure you pair with the Kestrel you want, even when more than one system is operating in the same area.

Permanently coded unique 4-digit Pin numbers provide extra security when pairing and transmitting data





 NV Configuration


Military personnel and pilots flying in darkness are often concerned with preserving their night vision. Due to overwhelming demand from our military customers, the Kestrel NV line was added in 2005.


The Kestrel 4500NV has a night-vision preserving backlight which helps users to sustain natural night vision. The NV's backlight incorporates an optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision. Additionally, NV backlights are also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations. This backlight appears soft greyish pink, not red, and is still in the visible spectrum, so is not compatible with night-vision equipment.

It takes 30 to 45 minutes for the average eye to adapt to darkness and maximize night vision. Even a short burst of white, yellow, green or blue light bleaches out the rod cell photoreceptors in the eye and causes night blindness until the entire adaptation process can take place again. Light in the red spectrum does not cause this bleaching out, preventing night blindness and night vision fatigue.


Kestrel 4500 Measures
Heading (true & magnetic)
Wind direction
Crosswind
Headwind/tailwind
Altitude
Pressure trend
Barometric pressure
Wet bulb temperature
Relative humidity in %
Heat stress index
Dewpoint
Wet bulb temperature
Density altitude
Wind chill
Air, water, and snow temperature °F or °C
Current, average, and maximum air velocity
Kestrel 4500 Features
Waterproof and floats
Time and date
Easy- to-read backlit display
Data Logger (automatic and manual)
Customizable data storage - 1400 data points
Minimum, Maximum and Average values
Multi-Function 3-line display
Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit.
Exterior temperature, humidity, and pressure sensors for fast and accurate readings
Customize screens to display user-selected measurements
Graph and recall trends
User-replaceable impeller
Flip-top impeller cover allows use of other functions while protecting the impeller
Data charting
Upload to a computer (with optional interface)
Five languages (English, French, Spanish, German, and Italian)
US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
5-year warranty

Assembled in the USA

Kestrel 4500 Includes
Soft carry pouch
Neck lanyard
Batteries - 2 AAA
Kestrel Certificate of Conformity