Richard Paul Russell Ltd
Home > Products > Kestrel Hand-held Weather Meters > Kestrel 4300 > Specification
Home > Products > Kestrel Hand-held Weather Meters > Kestrel 4300 > Specification
| 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. Manual data capture. Data upload with optional PC interface. Bluetooth models only: Integrated Bluetooth wireless data transfer with adjustable range from 5 to 30 feet. |
|
| 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 | Average expected life: 400 hours of active screen, monitoring and logging use, reduced by backlight and Bluetooth 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 | ||
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Richard Paul Russell Ltd is under license. Kestrel, Kestrel Tracker, Pocket Wind, Pocket Weather and the Kestrel logos are trademarks owned by Neilsen Kellerman. Other trademarks and trade names are those of their respective owners.
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