Dalotech - Data Logger information

Part Number:  0845
Price:   $359.00

Kestrel 4500 Weather Tracker

For years Kestrel customers have been asking for wind direction along with wind speed. Now, the Kestrel 4500 does just that with its built in digital compass. But it doesn’t stop there. It also calculates crosswind and headwind/tailwind with reference to a user-set target heading, and stores the information along with all the other environmental readings in its 2000 data point memory.

Pair the 4500 with the Kestrel Vane Mount and you have a data-logging weather station that sets up in seconds and rotates in the slightest of breezes. Did we mention that the whole kit is the ultimate in portability? It packs down into a 2 x 6 inch pouch and weighs under 8 ounces.


  • Digital compass provides direction and stores data with wind speed
  • Automatic Crosswind calculator
  • Headwind/Tailwind speeds
  • Current, Maximum and Average Wind Speeds
  • Air, Water & Snow Temperature
  • Wind Chill
  • Relative Humidity
  • Dewpoint
  • Heat Stress Index
  • Barometric Pressure
  • Altitude Please go to barometer and altitude help for more information.
  • Density Altitude
  • Wet Bulb Temperature
  • 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 2,000 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 the 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

NV Version for night-time activities

Kestrel 4500 night vision

The Kestrel 4500NV was improved to be even more suitable for night-time activities. The Kestrel® NV units are olive drab with a visible red backlight, which helps sustain the user's natural night vision. Military personnel and pilots flying in darkness are often concerend with preserving their night vision.

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. The units' red backlight is also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations.

More Information

Ordering Information
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Description Part Number Qty 1-9 Qty 10+  
Kestrel 4500 Pocket Weather Tracker 0845 $359.00 contact us Contact us to order
Kestrel 4500NV Pocket Weather Tracker 0845NV $379.00 contact us Contact us to order
Optional Accessories
Kestrel 4000 Interface-USB Port 0804USB $99.00 contact us Contact us to order
Kestrel 4000 Interface-Serial Port 0804SER $79.00 contact us Contact us to order
Kestrel 4000 Carry Case 0805 $19.00 contact us Contact us to order
Kestrel Replacement Impeller 0801 $19.00 contact us Contact us to order
Kestrel portable tripod with black carry pouch 0807 $25.00 contact us Contact us to order
Kestrel Portable Vane Mount 0791 $59.00 contact us Contact us to order
Kestrel RH Calibration Kit 0802 $79.00 contact us Contact us to order

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