Measure every major environmental condition—easily, accurately, affordably. Right in the palm of your hand.

• Versatile, thoroughly dependable, pocket-sized Kestrel 4000 adds less than 4 oz. to your gear.
• Provides virtually every environmental reading you need with the press of a single button.
• Get Barometric Pressure, Altitude, Density Altitude, Temperature, Humidity, Wind Speed, Wind Chill, Dew Point, Wet Bulb, and Heat Index in seconds
• Stores up to 2000 points of weather data, to track changes in the environment over time.
• Backlight offers easy readability in any light.
• Available in Berry Compliant (made in USA) models and backed by a 5-year Manufacturer’s Warranty.

Proven over a decade of tough use. Still the most comprehensive pocket weather meter on the market. The versatile, thoroughly dependable Kestrel 4000 Pocket Weather Tracker adds less than 4 ounces to your gear. Yet 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 or Mac with the optional Kestrel Interface. The chart mode allows users to recall and graph up to 4000 measurements, along with the date and time of storage. You get Barometric Pressure, Altitude, Density Altitude, Temperature, Humidity, Wind Speed, Wind Chill, Dew Point, Wet Bulb, and Heat Index... all in one pocket sized instrument. Operates an average 400 hrs. on two regular AAA batteries, which can be easily replaced in the field. Tripod mountable. Attaches to the Kestrel tripod or any standard camera tripod with ¼"-20 thread fitting. Includes 2 AAA batteries, a soft carry pouch, impeller cover, instructions, and a Certificate of Conformity.


Durable? You bet. The 4000 has been subjected to impact, water submersion and extreme temperature tests, and keeps on working. And these popular weather meters have been put to the test under real life working conditions 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. All Kestrel Weather Meters are Made in the U.S.A. and backed by a 5-year Manufacturer’s Warranty.

The Kestrel 4000 is available in Gray, Olive Drab, and Safety Orange— for a wide range of popular applications.

Answers the Call for Firefighting and Hazmat Firefighters and Hazmat professionals understand the importance of reliability and urgency. Lives depend on these crucial elements. Kestrel has earned the trust of First Responders around the world because Kestrel Meters are ready to take critical, accurate measurements FAST. Wildland firefighting Wildland firefighters can replace their entire belt weather kit with a Kestrel Pocket Weather Meter smaller than their radio. Thousands of Kestrel meters are on the job around the world every fire season providing measurements crucial to fire behavior prediction. Structural Firefighting Safety demands accurate situational wind speed measurements BEFORE deploying ladders and aerial equipment, and a Kestrel in the glove box is just the answer. Where a wildland fire has the potential to threaten an urban interface, a Kestrel Weather Meter can assist in assessing the fire weather and predicting fire behavior. Search & Rescue The portability of a Kestrel meter makes it ideal for measuring environmental conditions relevant to planning safe search and rescue operations and tracking parameters relevant to the safety and effectiveness of working dogs. Equipped with a Kestrel, rescue personnel on the ground can also provide important density altitude and wind readings to rescue aircraft, facilitating safe operations. Fire & Rescue Training First Responders must train for the conditions they will encounter. A Kestrel meter offers an affordable way to ensure every squad can monitor and log the heat stress index, wet bulb temperature and other key parameters to avoid heat injury or death of personnel during hot weather training. EMT With the accurate environmental information provided by a small, waterproof and tough Kestrel meter, emergency medical personnel can measure and track conditions relating to heat stress and exposure, and issue guidelines and warnings for field personnel no matter what the conditions. Data logging capabilities document all historical data in the field, making incident report preparation a snap. Hazardous Materials Response First responders can gather the weather data they need within seconds of arriving at the scene with no tedious setup.

Chosen for Military and Police Work

 

Kestrel® 4000 Pocket Weather® Tracker


FRONT

BACKLIGHT BUTTON
Press to activate backlight
For 1 minute.

MODE BUTTONS
Press to change mode of
measurements: Current, Min/
Max/Avg, Chart.

COMMAND BUTTON
In Chart Screens, press to view
Data points. In Setup Menus,
Press to make selection.

MANUAL MEMORY BUTTON
Press to manually store current
conditionsto memory.

MEASUREMENT BUTTONS
Press to scroll between
screens: Date/Time,
Measurements, User
Defined Screens.

POWER/SETUP BUTTON
Hold to turn power on or
off. Press to enter and exit
Main Setup Menu.

BACK

IMPELLER
Zytec™ V-bearings on a
user replaceable impeller.

IMPELLER COVER
Swivelcover protects impeller
when not in use.

DATA UPLOAD OPTICAL
COUPLER Software and
serial port interface
sold separately.

BATTERY DOOR
Sealed with o-ring to
keep product watertight.

TEMPERATURE SENSOR
Hermetically sealed precision
thermistor coiled to isolate from
case temperature.

HUMIDITY SENSOR
Capacitive sensor with secondary
thermistor to improve accuracy
and response.

SERIAL NUMBER

PRESSURE SENSOR
Monolithic silicon piezoresistive
sensor. DO NOT insert any
objects into this hole.

2 AAA BATTERIES
average life 400 hrs.

Kestrel 4000 Measures:

• Barometric pressure
• Pressure trend
• Altitude
• Relative humidity
• Heat stress index
• Dewpoint
• Wet bulb temperature
• Density altitude
• Wind chill
• Air, water, and snow temperature
• Current wind speed
• Average wind speed
• Maximum wind gust

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 our 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 – up to 4000 data points
• Graph and recall trends
• Customize screens to display user-selected measurements
• Data charting
• Data upload to PC or Mac (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
• Uses 2 AAA batteries (included); average runtime 400 hours depending on use of backlight
• Batteries can be easily replaced in the field
• US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
• All instruments and accessories are completely assembled in the USA
• 5-year warranty

Kestrel 4000 Includes

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

Specifications:

• Dimensions –5 x 1.8 x 1.1 in. (127 x 45 x 28mm)
• Weight –3.6 oz. (102g)

Download Kestrel 4000 Instruction Manual for more information.

Available in Gray, Olive Drab, and Safety Orange