MAX/MIN key: display the highest/lowest temperature humidity memory or clear the highest/lowest temperature humidity record.
In the normal state, press the MAX/MIN key to switch the display max→min→current temperature and humidity.
In the MAX or MIN state, it will automatically return to the current temperature and humidity
display after 8 seconds without a button.
Clearing the highest/lowest temperature and humidity record: In the MAX or MIN state, press and hold the MAX/MIN key for 2 seconds to clear the highest/lowest temperature and humidity displayed, and return to the current temperature and humidity display.
RESET key: Clear reset.
There is a buckle and support plate behind the machine, which can be hung on the wall or placed on a plane.
The product uses a (1.5V) AAA battery. (not included)The font display is blurred, please replace the battery and pay attention to environmental protection.
C type comes with 1.5m temperature and humidity sensor cable.