La Crosse Technology WS-9080U-IT Manuel D'instructions page 31

Note:
The daily minimum temperature record is reset automatically at 8:00 pm and the daily
maximum temperature is reset automatically at 8:00 am every day.
DAILY OUTDOOR MIN AND MAX TEMPERATURE DISPLAY
This temperature station also displays the daily minimum and maximum outdoor
temperature for each outdoor channel in normal display.
Channel No.
Min daily temp
of the channel
To view the daily MIN and MAX temperature of another channel, user shall press the CH
key to shift to various channel display.
Note:
The daily minimum temperature record is reset automatically at 8:00 pm and the daily
Max daily temp
of the channel
30