Kestrel 3000 - Handheld Pocket Weather Meter w/Backlight

Operating Modes: Moving 3-second average (), maximum 3-second gust since power on (MAX) or average since power on (AVG).
Display Update: 1 second.
Units: Knots (KT), meters per second (M/S), kilometers per hour (KM/H), miles per hour (MPH), feet per minute (FPM) and Beaufort force (B).
On-Axis Accuracy: greater of +/- 3% or +/- least significant digit.
Off-Axis Response: -1% @ 5º, -2% @ 10º, -3% @ 15º.
Resolution and Range: KT, M/S, KM/H or MPH: resolution 0.1; max display range 199.9.
FPM: resolution 1.0 below 1,999, 10 above 2,000(auto-ranging); max display range 19,990.
Calibration Drift: < 2% after 100 hours use at 7 M/S (~14 KT, 25 KM/H, 16 MPH or 1,400 FPM).
Minimum - Maximum Speed: 0.3 M/S (~0.6 KT, 1 KM/H, 0.7 MPH or 60 FPM) to 40 M/S (~78 KT, 144 KM/H, 89 MPH or 7,830 FPM).
Operating Modes: Temperature; wind chill; relative humidity; heat index; dew point temperature.
Units: Degrees Centigrade (ºC) or degrees Fahrenheit (ºF).
Accuracy: Temperature and wind chill, +/- 1.0ºC; relative humidity +/- 3%; dew point temperature, +/-2ºC; heat index, +/-3ºC. Humidity sensor can be recalibrated in the field.
Temperature/Wind Chill Display Update: 1 second.
Humidity Sensor Response Time: 1 minute.
Resolution: 0.1.
Environmental Sealing: Electronics enclosure IP67 - water resistant to 1 m. (3 ft.). Floats.
Shock: Drop tested to 2 m. (6 ft.).
Operating Temperature: LCD readability is lost above 50ºC (122ºF) and below -15ºC (5ºF). Accurate readings may be taken beyond these temperature limits by exposing the unit for the minimum time necessary to take and record measurement.
Storage Temperature: Recommended -20ºC to 80ºC (-4ºF to 176ºF).
Physical Buttons: Two sealed tactile rubber buttons control all functions.
Auto Shutdown: 30 minutes after last key press.
Battery: User-replaceable CR2032 coin cell. Typical life, 400 hrs.
Impeller: 25 mm (1 in.) diameter, sapphire bearings, light weight. User-replaceable without tools.
Temperature Sensor: Hermetically sealed precision thermistor.
Humidity Sensor: Silicon based capacitive sensor.
Display: Reflective 3 1/2 digit LCD, 9 mm (0.36 in.) digit height.
Case: Slip-on hard case.
Dimensions: 122 x 42 x 14 mm (4.8 x 1.7 x 0.6 in.); case, 117 x 46 x 19 mm (4.6 x 1.8 x 0.7 in.); lanyard, 0.5 m. (10 in.).
Weight: Unit, 44 g. (1.6 oz.); case, 23 g. (0.8 oz.).
Temperature Limitations:


The Kestrel temperature sensor is able to measure temperatures as lowas -30C (-22F) and as high as 70C (158F). The sensor and electronics simplywon't measure beyond this range.

The Kestrel is able to display wind chill measurements lower than -30C,depending on wind conditions. It is also able to display heat indexmeasurements above 70C, depending on humidity conditions.

Furthermore, the Kestrel display will not function if the display itselfgets below -15C. However, if the unit is kept in a pack or pocket or otherwarm area, the display itself should not get this cold. In other words, trynot to leave the Kestrel outside in temperatures below -15C.