Kestrel 5400 User Manual

23
Press only the sides of the impeller when removing and inserting
to avoid damaging the precision hub bearing. [Figure 1] .
» Press FIRMLY on the impeller module to remove it.
» Insert the new impeller so the side that has the
small triangle (close to the perimeter) faces the
front of the Kestrel when installed.
Figure 1
IMPELLER REPLACEMENT
» Orient one “arm” of the module straight up .
[Figure 2]. The impeller can be pushed in from either
side.
Figure 2
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Kestrel 5400 Specifications

General

Measurement Functions	Wind speed, Temperature, Humidity, Pressure
Temperature Range	-20 to 70°C (-4 to 158°F)
Humidity Range	0 to 100%
Battery Type	AA battery
Waterproof	Yes, IP67
Data Logging	Yes, up to 10, 000 data points
Bluetooth	Yes, Bluetooth Low Energy
Display	Monochrome LCD
Battery Life	400 hours
Operating Temperature	-10 to 55 °C
Wind Speed Range	0.6 to 40 m/s (1.3 to 89 mph)
Accuracy	Varies by measurement function
Resolution	Wind speed: 0.1 m/s, Temperature: 0.1°C, Humidity: 0.1% RH, Pressure: 0.1 hPa