User's Guide
30
NOTE:
• The accuracy of a general pressure-based forecast is about 70% - 75%. Forecasts are not
guaranteed.
• The forecast section reects a general prediction for the next roughly 12 ~ 24 hours. It may not
necessarily reect the current situation.
• The SNOWY weather forecast is not based on the atmospheric pressure, but based on the current
temperature reading from that wireless sensor. When the outdoor temperature is below ~ 26°F
(-3°C), the SNOWY weather indicator will be shown on the LCD display.
The built-in barometer can notice atmospheric pressure changes, and based on the data collected,
can predict the weather conditions in the forthcoming 12-24 hours within a 19 ~ 31 mile (30 ~ 50
km) radius.
WEATHER FORECAST
Beaufort
Scale Level
Description Wind Speed Land Condition
0 Calm Calm. Smoke rises vertically
1 Light air
2 Light breeze
3 Gentle breeze
4 Moderate breeze
5 Fresh breeze
6 Strong breeze
7 High wind
< 1 km/h
< 1 mph
< 1 knot
.< 0 3 m/s
.1 1 ~ 5km/h
1 ~ 3 mph
1 ~ 3 knot
. .0 3 ~ 1 5 m/s
6 ~ 11 km/h
4 ~ 7 mph
4 ~ 6 knot
. .1 6 ~ 3 3 m/s
12 ~ 19 km/h
8 ~ 12 mph
7 ~ 10 knot
. .3 4 ~ 5 4 m/s
20 ~ 28 km/h
13 ~ 17 mph
11 ~ 16 knot
. .5 5 ~ 7 9 m/s
29 ~ 38 km/h
18 ~ 24 mph
17 ~ 21 knot
. .8 0 ~ 10 7 m/s
39 ~ 49 km/h
25 ~ 30 mph
22 ~ 27 knot
. .10 8 ~ 13 8 m/s
50 ~ 61 km/h
31 ~ 38 mph
28 ~ 33 knot
. .13 9 ~ 17 1 m/s
Smoke drifts indicate wind
direction. Leaves and wind
vanes are stationary.
Wind can be felt on exposed
skin. Leaves rustle. Wind
vanes begin to move.
Leaves and small twigs
constantly moving, light
flags extended.
Dust and loose paper
raised. Small branches
begin to move.
Branches of a moderate
size move. Small trees in
leaf begin to sway.
Whole trees in motion.
Eort needed to walk
against the wind.
Some twigs broken from
trees. Cars veer on the
road. Progress on foot is
seriously impeded.
Some branches break o trees,
and some small trees blow
over. Construction/temporary
signs and barricades blow over.
Trees are broken o or
uprooted, structural
damage likely.
Widespread vegetation
and structural
damage likely.
Severe widespread damage to
vegetation and structures.
Debris and unsecured objects
are hurled about.
Large branches in motion.
Whistling heard in overhead wires.
Umbrella use becomes dicult.
Empty plastic bins tip over.
8 Gale
9 Strong gale
10 Storm
11 Violent storm
12 Hurricane force
62 ~ 74 km/h
39 ~ 46 mph
34 ~ 40 knot
17.
2 ~ 20
.7 m/s
75 ~ 88 km/h
47 ~ 54 mph
41 ~ 47 knot
20.8 ~ 24.4 m/s
89 ~ 102 km/h
55 ~ 63 mph
48 ~ 55 knot
24.5 ~ 28.4 m/s
103 ~ 117 km/h
64 ~ 73 mph
56 ~ 63 knot
28.5 ~ 32.6 m/s
≥ 118 km/h
≥ 74 mph
≥ 64 knot
≥ 32.7m/s
Heat Index range Warning Explanation
80°F to 90°F (27°C to 32°C) Caution Possibility of heat exhaustion
91°F to 105°F (33°C to 40°C) Extreme Caution Possibility of heat dehydration
106°F to 129°F (41°C to 54°C) Danger Heat exhaustion likely
≥ 130°F (≥ 55°C) Extreme Danger Strong risk of dehydration / sun stroke
Sunny Partly cloudy Cloudy Rainy Rainy / Stormy Snowy
Absolute The absolute atmospheric pressure of your location
Relative The relative atmospheric pressure based on the sea level
1. In normal operating mode, press the BARO button to cycle through options for the barometer units
of measure in the following order: hPa > inHg > mmHg.
2. While in normal operating mode, press and hold the BARO button to switch between ABSOLUTE
and RELATIVE barometric pressure displays.
BAROMETRIC PRESSURE
Set Barometer Units
The atmospheric pressure is the pressure at any location on Earth caused by the weight of the
column of air directly above that location. The average pressure gradually decreases as the altitude
increases. Meteorologists use barometers to measure atmospheric pressure. Since variation in
atmospheric pressure can be greatly aected by the weather, it is possible to forecast the weather
by measuring these changes in pressure.
Beaufort
Scale Level
Description Wind Speed Land Condition
0 Calm Calm. Smoke rises vertically
1 Light air
2 Light breeze
3 Gentle breeze
4 Moderate breeze
5 Fresh breeze
6 Strong breeze
7 High wind
< 1 km/h
< 1 mph
< 1 knot
.< 0 3 m/s
.1 1 ~ 5km/h
1 ~ 3 mph
1 ~ 3 knot
. .0 3 ~ 1 5 m/s
6 ~ 11 km/h
4 ~ 7 mph
4 ~ 6 knot
. .1 6 ~ 3 3 m/s
12 ~ 19 km/h
8 ~ 12 mph
7 ~ 10 knot
. .3 4 ~ 5 4 m/s
20 ~ 28 km/h
13 ~ 17 mph
11 ~ 16 knot
. .5 5 ~ 7 9 m/s
29 ~ 38 km/h
18 ~ 24 mph
17 ~ 21 knot
. .8 0 ~ 10 7 m/s
39 ~ 49 km/h
25 ~ 30 mph
22 ~ 27 knot
. .10 8 ~ 13 8 m/s
50 ~ 61 km/h
31 ~ 38 mph
28 ~ 33 knot
. .13 9 ~ 17 1 m/s
Smoke drifts indicate wind
direction. Leaves and wind
vanes are stationary.
Wind can be felt on exposed
skin. Leaves rustle. Wind
vanes begin to move.
Leaves and small twigs
constantly moving, light
flags extended.
Dust and loose paper
raised. Small branches
begin to move.
Branches of a moderate
size move. Small trees in
leaf begin to sway.
Whole trees in motion.
Eort needed to walk
against the wind.
Some twigs broken from
trees. Cars veer on the
road. Progress on foot is
seriously impeded.
Some branches break o trees,
and some small trees blow
over. Construction/temporary
signs and barricades blow over.
Trees are broken o or
uprooted, structural
damage likely.
Widespread vegetation
and structural
damage likely.
Severe widespread damage to
vegetation and structures.
Debris and unsecured objects
are hurled about.
Large branches in motion.
Whistling heard in overhead wires.
Umbrella use becomes dicult.
Empty plastic bins tip over.
8 Gale
9 Strong gale
10 Storm
11 Violent storm
12 Hurricane force
62 ~ 74 km/h
39 ~ 46 mph
34 ~ 40 knot
17.
2 ~ 20
.7 m/s
75 ~ 88 km/h
47 ~ 54 mph
41 ~ 47 knot
20.8 ~ 24.4 m/s
89 ~ 102 km/h
55 ~ 63 mph
48 ~ 55 knot
24.5 ~ 28.4 m/s
103 ~ 117 km/h
64 ~ 73 mph
56 ~ 63 knot
28.5 ~ 32.6 m/s
≥ 118 km/h
≥ 74 mph
≥ 64 knot
≥ 32.7m/s
Heat Index range Warning Explanation
80°F to 90°F (27°C to 32°C) Caution Possibility of heat exhaustion
91°F to 105°F (33°C to 40°C) Extreme Caution Possibility of heat dehydration
106°F to 129°F (41°C to 54°C) Danger Heat exhaustion likely
≥ 130°F (≥ 55°C) Extreme Danger Strong risk of dehydration / sun stroke
Sunny Partly cloudy Cloudy Rainy Rainy / Stormy Snowy
Absolute The absolute atmospheric pressure of your location
Relative The relative atmospheric pressure based on the sea level
17
HEAT INDEX
The heat index, which is determined by the wireless 5-IN-1 sensor's temperature & humidity
data, when the temperature is between 27°C (80°F) and 50°C (120°F).
Heat Index range Warning Explanation
27°C to 32°C (80°F to 90°F) Caution Possibility of heat exhaustion
33°C to 40°C (91°F to 105°F) Extreme Caution Possibility of heat dehydration
41°C to 54°C (106°F to 129°F) Danger Heat exhaustion likely
≥55°C (≥130°F) Extreme Danger Strong risk of dehydration / sun stroke
WIND CHILL
A combination of the wireless 5-IN-1 sensor's temperature and wind speed data determines the
current wind chill factor.
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
5-IN-1 sensor.
WEATHER FORECAST
The built-in barometer can notice atmosphere pressure changes. Based on the data collected,
it can predict the weather conditions in the forthcoming 12~24 hours within a 30~50km (19~31
miles) radius.
Sunny Partly cloudy Cloudy Rainy Rainy / Stormy Snowy
NOTE:
- The accuracy of a general pressure-based weather forecast is about 70% to 75%.
- The weather forecast is reecting the weather situation for next 12~24 hours, it may not
necessarily reect the current situation.
- The SNOWY weather forecast is not based on the atmospheric pressure, but based on the
temperature of outdoor. When the temperature is below -3°C (26°F), the SNOWY weather
icon will be displayed on the LCD.
BAROMETRIC PRESSURE
The atmospheric pressure is the pressure at any location of
the earth caused by the weight of the column of air above it.
One atmospheric pressure refers to the average pressure and
gradually decreases as altitude increases. Meteorologists use
barometers to measure atmospheric pressure. Since variation in
atmospheric pressure greatly affected by weather, it is possible to
forecast the weather by measuring the changes in pressure.
TO SET THE BAROMETER UNIT
In normal mode, press [ BARO UNIT ] key to change the barometer unit in this sequence: hPa
→ inHg → mmHg