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.
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.
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.
Kestrel 3500 benefits * 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
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
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