24
NOTE:
When low battery is detected, the channel number of the sensor detecting the low battery
4.3.12 TREND INDICATOR
The trend indicator shows the temperature and
humidity trends of changes in the forthcoming
few minutes.
Rising Steady Falling
4.3.13 WIND
4.3.13.1 WIND SPEED AND DIRECTION SECTION OVERVIEW
1. High wind speed alert indicator
2. Gust indicator
3. Real time wind direction indicator (16 points)
4. Average / gust wind speed or Beaufort scale
1
4
3
2
4.3.13.2 WIND SPEED, GUST AND BEAUFORT SCALE DISPLAY
Press [WIND] key to switch display between Average wind speed, Gust, and Beaufort scale. The
wind level provides a quick reference on the wind condition and is indicated by a series of text
icons
Level LIGHT MODERATE STRONG STORM
Speed
2-8 mph
3-13 km/h
9-25 mph
14-41 km/h
26-54 mph
42-87 km/h
NOTE:
-
-
4.3.13.3 BEAUFORT SCALE TABLE
The Beaufort scale is an international scale of wind velocities ranging from 0 (calm) to 12
(Hurricane force).
Beaufort Scale Description Wind Speed Land Condition
0 Calm
< 1 km/h
Calm. Smoke rises vertically.
< 1
mph
< 1
knots
< 0.3 m/s
1 Light air
1.1 ~ 5km/h
Smoke drift indicates wind direction.
Leaves and wind vanes are stationary.
1 ~ 3 mph
1 ~ 3 knots
0.3 ~ 1.5 m/s
2 Light breeze
6 ~ 11 km/h
Wind felt on exposed skin. Leaves rustle.
Wind vanes begin to move.
4 ~ 7 mph
4 ~ 6 knots
1.6 ~ 3.3 m/s
3 Gentle breeze
12 ~ 19 km/h
Leaves and small twigs constantly moving,
8 ~ 12 mph
7 ~ 10 knots
3.4 ~ 5.4 m/s
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