KESTREL 4000 Portable Pocket Weather Meter

Kestrel 4000 Pocket Weather Tracker allows you to take instant accurate readings of environmental conditions whenever and wherever you are. At the touch of a button important weather information is clearly shown in digital or graphical form. Ideal for construction workers, engineers, sailors, flyers, farmers and those who love the outdoors, the Kestrel 4000 offers a multitude of features to help you monitor your environment in one single instrument.

For those with after dark requirements, the Kestrel 4000NV (with an olive drab or desert tan case) is available with a low intensity red backlight.

Individual functions can be displayed in 3 different formats: current, minimum/maximum/average and chart. There are also 3 user screens, which can be customised to simultaneously display the 3 most appropriate functions for the application. The Kestrel 4000 can be set up to log data automatically (as well as manually) at programmable intervals, in order to display a history of weather information. Graphs display up to 4000 data points and the value, time and date of capture point can be shown.

The stored data can also be uploaded to a PC, for analysis/storage with the optional Kestrel Interface and Communicator software. With the Bluetooth® model, data may be streamed live via Bluetooth wireless technology.

High precision Zytel® bearings and a lightweight impeller provide accurate air flow measurements (+/-3% of reading) and the ability to operate at speeds as low as 0.6 m/s. The impeller is user-replaceable in case of damage, also ensuring high accuracy levels are maintained for life. An integral hard cover protects the impeller when not in use.

A precision external thermistor sensor provides fast response temperature readings and accuracy of +/- 1°C. The 0.1 degree resolution of the display aids in determining when a consistent reading has been reached. A special housing protects the relative humidity sensor from contamination providing an accuracy of +/-3%. A monolithic silicon based pressure sensor enables barometric pressure and altitude to be calculated, with a resolution of 0.1mb and 1m respectively.

The combination of the Kestrel 4000’s multiple sensors result in the following derived functions: wind chill, heat index, dew point and density altitude.
The Kestrel 4000 Pocket Weather Tracker is powered by two easily replaceable, AAA batteries and has two power saving modes to prolong battery life. All text can be displayed in one of several languages including: English, French, Italian, Spanish or German.

Kestrel 4000 measures
Current wind speed
Average wind speed
Maximum wind speed
Temperature
Wind Chill
Relative Humidity
Heat index
Dew Point
Wet bulb temperature
Barometric pressure
Altitude
Density altitude
Time & Date
Choice of measurement units
kt, m/s, km/h, mph, ft/min, Beaufort
ºC, ºF
%
mbar, inHg, hPa, psi
m, ft

Accuracy
Speed ±3% of reading or ±0.1m/s
Temperature ±1ºC
Relative humidity ±3%
Dew point ±3ºC
Barometric pressure ±1.5mbar
Altitude ±15m

Operational Range
Speed 0.6 to 60 m/s
Temperature -45 to +125ºC
Relative humidity 0 to 100%
Barometric pressure 10 to 1100mbar

Specifications :

Speed 0.6 to 40 m/s
Temperature -29 to +70ºC
Relative humidity 5 to 95%
Barometric pressure 750 to 1100mbar
Available options:
NV model
Bluetooth model