Maximum / minimum temperature & humidity
In normal display mode, press the "+" button to view
maximum and minimum values of temperature, humidity
and CO2. MAX will be displayed while viewing maximum
values and MIN will be displayed while viewing minimum
values.
Press and hold the "+" button for 2 seconds while viewing
the max and min values, you can clear the max and min
values and start recording again.
The maximum and minimum records will be automatically
cleared and re-recorded at 0:00 each day.
CO2 concentration and CO2 trend display
CO2 concentration is displayed by an 8 grid bar graph,
who change accordingly to the measured CO2 value:
According to the change of carbon dioxide concentration, if
it rises within one hour or more than or equal to 100 ppm,
the arrow points up; if it drops within one hour or more
than or equal to 100 ppm, the arrow points down; if it does
not exceed 100 ppm within one hour, the arrow points flat.
Carbon dioxide concentration detection frequency is 5
seconds.
According to the current CO2 concentration value, there
are four levels of CO2 appraisal:
EN6