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Home > Products > Kestrel Hand-held Weather Meters > Kestrel 4300 > Specification
Kestrel 4300 data sheet - download PDF
| Physical | Dimensions | 126mm x 45mm x 29mm |
| Weight | 102g | |
| Lanyards | 0.2m and 0.5m (for wrist and neck) | |
| Case colour | Lime green | |
| Display | Display type | Dot matrix LCD with electro-luminescent backlighting |
| Display update | 1 second | |
| Data logging | Programmable 2 second to 12 hour intervals, 1800 data points and optional PC upload | |
| Functions | Wind speed (current, maximum and average) | |
| Temperature | ||
| Wind Chill equivalent temperature | ||
| Relative Humidity | ||
| Heat Index | ||
| Calculated Dew Point | ||
| Wet bulb temperature | ||
| Evaporation rate | ||
| Barometric pressure | ||
| Altitude | ||
| Density altitude | ||
| Speed units | kt, m/s, km/h, mph, ft/min, Beaufort Force (B) | |
| Temperature units | ºC, ºF | |
| Pressure units | mbar, inHg, hPa, psi | |
| Altitude units | m, ft | |
| Evaporation rate units | kg/m2/hr, lb/ft2/hr | |
| Date and time display | dd/mm/yy, mm/dd/yy, 12 hour, 24 hour | |
| Performance | Speed range | 0.4m/s to 40m/s (0.8 to 89.0mph) |
| On axis accuracy | ± 3% of reading or ± 0.1 m/s. (Some loss of accuracy from bearing wear may occur with sustained operation at or near maximum speed) | |
| Off -axis response | -1% @ 5°, -2% @ 10°, -3% at 15° | |
| Calibration drift | <2% after 100hrs operation at 7m/s |
|
| Speed resolution | 0.1 kt, m/s, km/h, mph. 1 FPM below 1999 FPM, 10 FPM above 2000 FPM. 1 Beaufort (0 to 12) | |
| Temperature range | -29.0ºC to 70.0ºC | |
| Temperature accuracy | ±1ºC | |
| Temperature resolution | 0.1º | |
| Wind chill accuracy | ±2ºC (from wind speed and temperature) | |
| Relative Humidity range | 0% to 100% | |
| RH resolution | 1% | |
| RH accuracy | ±3% over range 15% to 90% at calibration temperature | |
| RH calibration drift | ±2% over 24 months (correctable) | |
| Dew point accuracy | ±3°C (above 20% relative humidity) | |
| Barometric Pressure range | 750 to 1100 mbar at 25ºC | |
| Barometric Pressure resolution | 0.1 mbar | |
| Barometric Pressure accuracy | ±3 mbar (from -10ºC to 60ºC) | |
| Barometric Pressure long term drift | Typically ±1 mbar per year (correctable) | |
| Altitude range | -500m to +9000m (-1500 ft to +30,000 ft) | |
| Altitude accuracy | ±30m | |
| Altitude resolution | 1m or 1ft | |
| Evaporation rate range | 0.00 to 5.00 kg/m2/hr | |
| Evaporation rate accuracy | ±0.1 kg/m2/hr Typical (±0.2 lb/ft2/hr Typical) | |
| Evaporation rate resolution | 0.01kg/m2/hr | |
| Sensors | Impeller | Diameter 25mm High precision jewel bearings User replaceable impeller assembly |
| Temperature | Hermetically sealed precision thermistor | |
| Relative Humidity | Silicon based capacitive sensor | |
| Barometric pressure | Monolithic Piezo-resistive silicon based sensor | |
| Environmental | Sealing | Electronics enclosure IP67 [Water resistant] |
| Shock | Drop tested | |
| Temperature | Operating range: -10ºC to 55ºC (operation
over a wider range is possible with reduced display readability) Storage range: -30ºC to 60ºC |
|
| EMC | CE marked | |
| Miscellaneous | Battery | 2 AAA alkaline, user replaceable |
| Battery Life | 400 hours of use, average, ± depending on backlight use | |
| Auto switch off | Selectable to remain switched on, switch off 15 minutes or 60 minutes after last key press | |
| Wind chill equivalent temperature calculation | Calculated as specified by the US and Canadian weather services | |
| Heat Index calculation | Steadman, from temperature and relative humidity | |
| Certification | Wind speed, temperature, humidity and
pressure measurements are tested during
manufacture. A certificate of conformity (C of C) is included with each Kestrel. Calibration certificates are available for an additional fee. |
|
| Guarantee | 5 years | |
| The manufactures reserve the right to amend the specification and therefore the information in this document may be subject to change | ||
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