CCL ELECTRONICS LTD 84291702 Manuel D’Utilisation

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)

Caution

Extreme Caution

Danger

Extreme Danger

Possibility of heat exhaustion

Possibility of heat dehydration

Heat exhaustion likely

Strong risk of dehydration / sun stroke

Beaufort number

< 1 km/h
< 1 mph
< 1 knots
< 0.3 m/s
1.1–5.5 km/h
1–3 mph
1–3 knots
0.3–1.5 m/s
5.6–11 km/h
4–7 mph
4–6 knots
1.6–3.4 m/s
12–19 km/h
8–12 mph
7–10 knots
3.5–5.4 m/s
20–28 km/h
13–17 mph
11–16 knots
5.5–7.9 m/s
29–38 km/h
18–24 mph
17–21 knots
8.0–10.7 m/s
39–49 km/h
25–30 mph
22–27 knots
10.8–13.8 m/s
50–61 km/h
31–38 mph
28–33 knots
13.9–17.1 m/s
62–74 km/h
39–46 mph
34–40 knots
17.2–20.7 m/s
75–88 km/h
47–54 mph
41–47 knots
20.8–24.4 m/s
89–102 km/h
55–63 mph
48–55 knots
24.5–28.4 m/s
103–117 km/h
64–73 mph
56–63 knots
28.5–32.6 m/s
≥ 118 km/h
≥ 74 mph
≥ 64 knots
≥ 32.7m/s

Wind speed

Calm

Light air

Smoke drift indicates wind direction. 
Leaves and wind vanes are stationary.

Wind 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.

Large branches in motion. Whistling heard 
in overhead wires. Umbrella use becomes 
difficult. Empty plastic bins tip over.

Whole trees in motion. Effort needed
 to walk against the wind.

Some twigs broken from trees. Cars 
veer on road. Progress on foot is 
seriously impeded.

Some branches break off trees, and 
some small trees blow over. Construction
/temporary signs and barricades blow over.

Trees are broken off 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.

Description

Calm. Smoke rises vertically.

Land conditions

Light breeze

Gentle breeze

Moderate breeze

Fresh breeze

Strong breeze

High wind

Gale

Strong gale

Storm

Violent storm

Hurricane force

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WIND CHILL / HEAT INDEX / DEW-POINT
To view Wind Chill:

Press the [INDEX] button repeatedly until WINDCHILL displays.

Note:  The wind chill factor is based on the combined effects of temperature and wind speed. The wind chill displayed is 
calculated solely from temperature and humidity measured from the 5-in-1 sensor.

To view Heat Index:

Press the [INDEX] button repeatedly until HEAT INDEX displays.

Note:   Heat index is only calculated when temperature is 27°C/80°F or above, and based solely from the temperature 
and humidity measured from the 5-in-1 sensor.

To view Dew-Point (Indoor)

Press the [INDEX] button repeatedly until DEWPOINT displays.

Note:  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 dewpoint temperature is calculated from the indoor temperature and humidity measured at the Main Unit.

The Display main unit automatically record and display data of past 24 hours on the hour.
To check all the history data in the past 24 hours, press the [HISTORY] button. 
E.g. Current time 7:25 am, Mach 28
Press [HISTORY] button repeatedly to view past readings at 7:00am, 6:00am, 5:00am, …, 5:00am (Mar 27), 
6:00am (Mar 27), 7:00am (Mar 27)
The LCD will display the past indoor and outdoor temperature & humidity, value of air pressure, wind chill, wind 
speed, rainfall and their time and date.

1.  Press [MAX/MIN] button to check the maximum/minimum records. The checking orders will be: Outdoor
     max temperature    Outdoor min temperature    Outdoor max humidity    Outdoor min humidity    Indoor max
     temperature    Indoor min temperature    Indoor max humidity    Indoor min humidity    Outdoor max wind chill    
     Outdoor min wind chill    Outdoor max heat index    Outdoor min heat index    Indoor max dewpoint    Indoor
     min dewpoint     Max pressure    Min pressure    Max average    Max gust    Max rainfall.     
2.  Press and hold [MAX/MIN] button for 2 seconds to reset the maximum and minimum records.

Note:   When maximum or minimum reading is displayed, the corresponding timestamp will be shown. 

Beaufort scale is an international scale of wind velocities from 0 (calm) to 12 (Hurricane force).

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