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Sensor Specifications

Kestrel Meter Sensor Specifications

Product Specifications for Kestrel 5 Series Weather/Environmental Meters
SENSORS
SENSOR ACCURACY SPECIFICATION RANGE
Wind Speed | Air
Flow
Larger of 3% of reading, least
signifi- cant digit or 20 ft/min
0.6 to 40.0 m/s
118 to 7,874 ft/min
2.2 to 144.0 km/h
1.3 to 89.5 mph
1.2 to 77.8 knots
0 to 12 B*
2-131.2*
Ambient
Temperature
0.9 °F
0.5 °C
-20.0 to 158.0 °F
-29.0 to 70.0 °C
Relative Humidity ±2%RH 10 to 90% 25°C non-condensing
Pressure ±1.5 mbar at 25°C, 700-1100
mbar/ ±0.044inHg at 77°F 20.67-
32.48 inHg/
±0.022 PSI 10.15-15.95 PSI
25°C/77°F,
700-1100 mbar/20.67-32.48 inHg/10.15-
15.95 PSI
Compass ±5° 0 to 360°
CALCULATED MEASUREMENTS
MEASUREMENT ACCURACY (+/-) RESOLUTION
Air Density 0.0002 lb/ft3
0.0033 kg/m3
0.001 lbs/ft3
0.001 kg/m3
Air Flow 6.71% 1 cfm
1 m3/hr
1 m3/m
0.1m3/s
1 L/s
Altitude typical: 23.6 ft/7.2 m
- 50 to 1100 mBar
max: 48.2 ft/14.7 m
– 300 to 750 mBar
1 ft
1 m
Barometric Pressure 0.07 inHg
2.4 hPa|mbar
0.03 PSI
0.01 inHg
0.1 hPa|mbar
0.01 PSI
Crosswind & Headwind/
Tailwind
7.1% 1 mph
1 ft/min
0.1 km/h
0.1 m/s
0.1 knots
Delta T 3.2 °F
1.8 °C
0.1 °F
0.1 °C
Density Altitude 226 ft
69 m
1 ft
1 m
Dew Point 3.4 °F
1.9 °C
15-95% RH. Refer to Range for
Temperature Sensor
0.1 °F
0.1 °C
Evaporation Rate 0.01 lb/ft2/hr
0.06 kg/m2/hr
0.01 b/ft2/hr
0.01 kg/m2/hr
Heat Index 7.1°F
4.0°C
0.1 °F
0.1 °C
Moisture Content |
Humidity Ratio (“Grains”)
.3gpp
.4g/kg
0.1 gpp
0.01 g/kg
Relative Air Density 0.3% 0.1%
Wet Bulb Temperature -
Psychrometric
3.2 °F
1.8 °C
0.1 °F
0.1 °C
Wind Chill 1.6 °F
0.9 °C
0.1 °F
0.1 °C
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