Operation Manual

When the air pressure rises again, the symbols are displayed
constantly again.
In the top section, an arrow indicates the weather trend. If it points
up or down, the air pressure has risen or fallen by more than 1 hPa
within one hour.
Moon phases
The displayed moon phases are automatically updated with the date
constant air pressure = weather unchanged
rising air pressure = weather improving
falling air pressure = weather deteriorating
full moon
waning moon
new moon
new moon waxing moon
full moon