ECOWITT WS3900 - Max;Min Value Mode; Alarm Setting Mode; Alarm Function

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3.5.3 Max/Min Value Mode
In Normal mode, press SET to enter Max/min value mode.
Sequence: Normal mode -> Maximum value -> Minimum value.
Max value: outdoor/indoor temperature & humidity, feels like, dew point,
pressure, rainfall, wind speed, gust speed, UVI and solar radiation.
Min value: outdoor/indoor temperature & humidity, feels like, dew point,
and pressure.
Figure 35：Max/Min values
3.5.4 Alarm Setting Mode
3.5.4.1 Alarm Function
In Normal mode, press SET to enter Alarm setting mode.
Sequence: Normal mode -> Maximum value -> Minimum value ->
Alarm setting.
In the alarm setting mode, press
SET
to switch the alarm clock setting
item:
① Alarm hour setting
②
Alarm minute setting
Press + or - to adjust the value. Press WIND to switch on/off the alarm
clock.