Bresser Wind Gauge Pro, Instruction Manual

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22 / 52
Notice:
The perceived temperature is based on the common effects
of temperature and humidity. Heat index is only calculated
when room temperature is at 27° (80° F) or higher. The dis-
played perceived temperature is calculated solely from tem-
perature and humidity and is measured by the outdoor
sensor.
27 Dew point
Press the INDEX button several times until DEW POINT is
displayed.
Note:
The dew point is the temperature below which the water va-
por in air at constant barometric pressure condenses into li-
quid water at the same rate at which it evaporates. The con-
densed water is called dew when it forms on a solid surface.
The dewpoint temperature is calculated from the indoor
temperature and humidity measured at the main unit.
28 Beaufort scale
The Beaufort scale is an international scale of wind velocit-
ies from 0 (calm) to 12 (Hurricane force).
Beaufort number Description Speed
0 calm < 1 km/h | < 1 mph
< 1 knots | < 0.3 m/s
1 light air 1.1-5.5 km/h | 1-3 mph
1-3 knots | 0.3-1.5 m/s
2 light breeze 5.6-11 km/h | 4-7 mph
1-3 knots | 0.3-1.5 m/s
3 gentle breeze 12-19 km/h | 8-12 mph
7-10 knots | 3.5-5.4 m/s