Kestrel® 3500 pocket weather meter

Overview

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Kestrel 3500 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

Units of measure

kt, m/s, km/h, mph, ft/min, Beaufort
ºC, ºF
%
inHg, hPa
m, ft

Accuracy

Speed ±3% of reading or ±0.1 m/s
Temperature ±1ºC
Relative humidity ±3% or scale
Barometric pressure ±1.5hPa

Operational Range

Speed 0.4 to 60 m/s
Temperature -45 to +125ºC
Relative humidity 0 to 100%
Barometric pressure 10 to 1100hPa at 25ºC

Specification Range

Speed 0.4 to 40 m/s
Temperature -29 to +70ºC
Relative humidity 5 to 95%
Barometric pressure 750 to 1100hPa at 25ºC

Download the Kestrel 3500 data sheet

The Kestrel 3500NV with night vision protection

WHICH KESTREL?

Compare the Kestrel 3500 with the other members of the Kestrel range

The Kestrel 3500 Pocket Weather Meter is a small, pocket-sized electronic rotating vane type of anemometer (wind meter) with built-in temperature, humidity and barometric pressure sensors. It uses high precision jewel bearings and a light weight impeller to provide accurate air flow measurements even at low speeds. The impeller assembly is replaceable by the user in the case of damage.

A trend arrow displays whether the pressure is rising, stable or falling, this trend is calculated over a 3-hour period. The pressure is monitored even when the Kestrel 3500 is switched off.

Wind chill and heat index are equivalent temperatures that show the user how their environment really feels. Wind chill is the combination of wind speed and temperature, while heat index is the combined effect of air temperature and relative humidity. The humidity sensor compensates for temperature changes and is designed for stability and accuracy.

The liquid crystal display has large 9mm high digits and is backlit for a clear readout in low light conditions. For users with after dark requirements, the new Kestrel 3500NV, with an olive drab case, has a lower intensity red backlight to preserve night vision.

Power is from an easily replaceable standard lithium coin type cell, which will typically give up to 300 hours of operation. The instrument automatically switches off if no keys are pressed for 45 minutes.

The Kestrel 3500 Pocket Weather Meter is made from high impact injection moulded plastic and corrosion resistant materials with the electronics fully sealed. It will float if accidentally dropped into water. There is a hard cover for protection when not in use and a lanyard is provided for added security.

Kestrel 3500 benefits: What makes a Kestrel Unique?

Small, robust design
3 hour pressure trend
Data hold function
Real-time clock
Large easy to read display with backlight
Navigation made easy with prompts
Waterproof and floats
High precision jewel mounted impeller
Replaceable impeller
Fast response temperature sensor
Long life lithium battery
Includes protective cover, lanyard and battery
5 year warranty
Choice of measurement units
Yellow option: standard green backlight
Olive drab option: low intensity red backlight for preserving night vision

Typical applications

Agriculture - checking conditions prior to crop spraying or burning
Aviation - gliders, para-gliders, micro-lights, parachutists and ballooning
Construction - site safety, working conditions, working at height in cranes or access vehicles
Education - air flow experiments, environmental studies, outdoor sports
Heating and ventilation - air flow through fans, checking condition of filters
Industry - air flow measurements, pollution control
Science - aerodynamics, environmental science and meteorology
Fire fighters - checking fire spreading hazard
Outdoor activities - sailors, walkers, model boats/air craft, kite flyers, archery, shooting, fishing, golf & athletics

Richard Paul Russell Ltd