Bresser 7007420 Instruction Manual page 11

2. When a history value (MAX or MIN) is displayed, press
the [UP] button for about 3 seconds to delete all saved
values. The storage of the measured values starts again
from the beginning.
NOTICE! In the history bar chart, the air pressure values for
the last 24 hours can be read in compressed form at any
time.
15 Flu index
If a specific climatic constellation of temperature (T) and hu-
midity (rH) is reached there is a higher theoretical risk of a
flu infection. If one of the constellations listed in the table
below is reached, the flu index symbol flashes.
Temperature (T in °C)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
Humidity (rH in%)
20% to 23%
20% to 26%
20% to 28%
20% to 30%
20% to 31%
20% to 33%
20% to 35%
20% to 37%
20% to 40%
20% to 42%
20% to 45%
20% to 47%
20% to 50%
20% to 54%
20% to 57%
20% to 61%
20% to 65%
20% to 69%
20% to 73%
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