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Humidity
From a few seconds to several minutes
depending on wind speed
Pressure
instantaneous
Compass
instantaneous
Measuring range of sensors
Wind speed
0 to 300 (peak) km/h
Temperature
-40°C to +85°C
Humidity
0.1 to 100%rH
Pressure
10 to 1,100hPa
Altitude
-1,000 to 21,535m
Perpetual calendar
until 2175
Serial transmission
5mm between induction coils
Measurement units
Wind speed
km/h - m/s - knots - Beaufort - mph - fps
Temperature
° Celsius - ° Fahrenheit
Pressure
hPa (mbar) - inHg (inches of Mercury)
Altitude
m - ft (feet)
Variometer
m/s - hft/min (100 feet per minute)
Operational temperatures
Easy reading
from -10°C to + 70°C
Possible reading
from -20°C to -10°C
Very slow display but instrument able to work
(the sensors and recordings are operating correctly)
from -40°C to -20°C
Miscellaneous
Power Supply
instrument: 4 x 3V lithium CR2032 button batteries supplied
1 for the instrument, 1 spare, and 2 for the LED lamp
Impeller
Diameter 17.8mm (replaceable)
Dimensions
46 x 120 x 32 mm
Weight
171g
Waterproofness
5 minutes at 1 metre
Wait for the humidity sensor to dry off completely before re-using the
instrument