ECOWITT WS3910 - 3.3.5 Wi-Fi Icon Status Indicators; 3.3.6 Indoor Data Display Details

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Table 2: Weather forecast
3.3.4 Pressure Trend Function
Indicates the difference between the current barometric pressure and the
average barometric pressure over the past 30 days.
Sunny
Partly Cloudy
Cloudy
Pressure increases for a
sustained period of time
Pressure increases slightly
or initial power up
Pressure decreases
slightly
Rainy
Stormy
Snowy
Pressure decreases for a
sustained period of time
Pressure rapidly decreases
Pressure decreases
for a sustained
period of time, and
temperature ≤0℃
Storm Snowy
Pressure rapidly
decreases, and
temperature ≤0℃