Alecto WS5400 Mode D'emploi page 38

FEELS LIKE, HEAT INDEX, WIND CHILL & DEW POINT
Feels like, Heat index, Wind chill & Dew point can be viewed in the OUT
temperature section. During normal operation, press [ NDX / - ] key to switch the
OUT temperature as below sequence:
OUT temperature
FEELS LIKE
Feels Like Temperature shows what the outdoor temperature will feel like. It's a collective mixture of Wind Chill factor and
the Heat Index. For temperatures in the region between 18.1°C to 25.9°C where both wind and humidity are less significant
in affecting the temperature, the device will show the actual outdoor measured temperature as Feels Like Temperature.
DEW POINT
The dew point is the temperature below which the water vapor in air at constant barometric pressure condenses into liquid
water at the same rate at which it evaporates. The condensed water is called dew when it forms on a solid surface.
The dew point temperature is determined by the temperature & humidity data from wireless 7-IN-1 sensor.
HEAT INDEX
The heat index which is determined by the wireless 7-IN-1 sensor's temperature & humidity data when the temperature is
between 26°C (79°F) and 50°C (120°F).
HEAT INDEX RANGE
27°C to 32°C (80°F to 90°F)
33°C to 40°C (91°F to 105°F)
41°C to 54°C (106°F to 129°F)
≥55°C (≥130°F)
WIND CHILL
A combination of the wireless 7-IN-1 sensor's temperature and wind speed data determines the current wind chill factor.
WIND
Wind direction indicator
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Feels like Heat index
WARNING
Caution
Extreme caution
Danger
Extreme danger
Wind chill Dew point
EXPLANATION
Possibility of heat exhaustion
Possibility of heat dehydration
Heat exhaustion likely
Strong risk of dehydration / sun stroke
Avg wind speed, Gust, Beafort,
Wind direction reading