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repeatedly to scroll through the current & last 6 days/weeks/months data corresponding to your
selected rainfall mode. On the bar chart display, the “0” represents the current period. –1, –2, etc
indicate the prior periods. The precise rainfall reading of the selected period will be shown on the
display.
Example 1:
In April, press “RAIN HISTORY” repeatedly in the monthly rainfall mode until “–3” bar chart is shown.
The bar chart and reading indicate the monthly rainfall record in January (from 1st Jan to 31st Jan)
Example 2:
On Wednesday, press “RAIN HISTORY” repeatedly in the weekly rainfall mode until “-1” bar chart is
shown. The bar chart and reading indicate the weekly rainfall recorded last week (from last Sunday to
last Saturday).
Example 3:
On Friday, press “RAIN HISTORY” repeatedly in the daily rainfall mode until “–2” bar chart is shown.
The bar chart and reading indicate the daily rainfall record on this Wednesday.
WIND SPEED & DIRECTION
The weather station uses the anemometer to sample the wind speed and direction. You can set the
monitor to display the wind speed in miles per hour (mph), kilometers per hour (km/h), meters per
second (m/s), knots and Beaufort. Press “WIND UNIT” on the back casing until the desired unit
appears.
The monitor displays 16 wind directions (N for north, S for south, SW for south-west and so on).
Press “WIND” to select gust & average wind speed display.
Wind direction: Average wind direction over a 2-minute period
Average wind speed: Average wind speed over a 2-minute period
Gust wind speed: Maximum wind speed over a 10-minute period
Beaufort Knots
Wave height
(meter)
Wave height
(feet)
WMO description Effects observed on the sea
0 Under 1 - - Clam Sea is like a mirror
1 1 – 3 0.07 0.25 Light air
Ripples with appearance of scales;
no foam crests
2 4 – 6 0.15 – 0.3 0.5 – 1 Light breeze
Small wavelets; crests of glassy
appearance, not breaking
3 7 – 10 0.6 – 0.9 2 – 3 Gentle breeze
Large wavelets; crests begin to
break; scattered whitecaps
4 11 – 16 1 – 1.5 3.5 – 5 Moderate breeze
Small waves, becoming longer;
numerous whitecaps
5 17 – 21 1.8 – 2.4 6 – 8 Fresh breeze
Moderate waves, taking longer form;
many whitecaps; some spray
6 22 – 27 2.9 – 4 9.5 – 13 Strong breeze
Larger waves forming; whitecaps
everywhere; more spray
7 28 – 33 4.1 – 5.8 13.5 – 19 Near gale
Sea heaps up; white foam from
breaking waves begins to be blown in
streaks
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