Minimum (MIN) Maximum (MAX) Recording
Short press the MnMx/Reset button to view the minimum temperature and humidity
readings recorded (MIN is shown). Short press the MnMx/Reset button again to view
the maximum temperature and humidity readings recorded (MAX icon is shown). To
exit the MIN/MAX mode, press the MnMx/Reset button again (MIN and MAX icons
switch off).
To clear the MIN/MAX memory, long press the MnMx/Reset button until all display
characters switch on.
Data Hold
Short press the H (hold) button to freeze/unfreeze the displayed readings. The 'HLD'
icon will appear on the display when data hold is active.
Automatic Power-off (APO)
The meter automatically switches off after a programmed amount of time. The default
time is 10 minutes. To program the APO timer, long press the H button while switching
the meter on. Continue to hold both the power and H buttons. The meter will cycle
through the selectable timer values: n, 2, 5, 10, 20, 40 or 60 minutes (‘n’ disables APO).
When the desired power-off time appears on the display, release both buttons to
confirm the time and to return to the normal operating mode.
Note that the ‘n’ (APO defeat setting) only appears the first time through the APO time
cycle in the programming process, so if you want to disable the APO you will have to
catch the ‘n’ on the first cycle. If you miss it the first time, switch the meter OFF and
retry.
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