In 2000, NK introduced the Kestrel 4000 Pocket Weather Tracker, and today it is still the most comprehensive pocket weather meter on the market. For just under 4 ounces, you get every environmental reading with the press of a single button. The 4000 is unparalleled in its ease of use and totally customizable navigation and data display. In addition to measuring the current conditions, it tracks and stores up to 2000 sets of data, and data can be uploaded to a PC with the optional Kestrel Interface.

Durable? You bet. The 4000 has been subjected to impact, water submersion and extreme temperature tests, and keeps on working. Kestrel 4000’s have been put to the test in some of the harshest conditions on the planet. U.S. Special Forces, combat weather teams, wildland firefighters, smoke jumpers, Mt. Everest expeditions and IRL pit crews are just a few who rely on a Kestrel 4000 to provide them with the crucial environmental data they need. Watch the Weather Channel during a hurricane, and you’re sure to spot a Kestrel 4000 being wielded by an intrepid on-screen meteorologist.

Kestrel 4000 Measures

• Current Wind Speed
• Average Wind Speed
• Maximum Wind Gust
• Air, Water & Snow Temperature
• Wind Chill
• Barometric Pressure
• Pressure trend
• Altitude
• Density altitude
  
• Relative humidity
• Heat stress index
• Dewpoint
• Wet bulb temperature
  

Kestrel 4000 Features

• Waterproof and floats
• Easy to read, backlit display
• Time and date
• 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.
• Minimum, maximum, and average values
• Automatically store measurements, even when the unit is turned off
• Manually store measurements with the press of a button
• Customizable data storage - 4000 data points
• Graph and recall trends
• Customize screens to display user-selected measurements
• Data charting
• Data upload (with optional interface)
• Five languages (English, French, Spanish, German, and Italian)
• User-replaceable impeller
• Flip-top impeller cover allows use of other functions while protecting the impeller
• All instruments and accessories are completely assembled in the USA
• 5-year warranty

Kestrel 4000 Includes

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