Press the “up” button once to display the starting temperature (humidity), press the “up” button for about 3 seconds, the required temperature (humidity) can be set by the UP and Down buttons.
Set stop temperature (humidity):
Press the “Down” button once to display the stop temperature (humidity). Long press the button for about 3 seconds and the stop temperature (humidity) number flashes. The desired temperature (humidity) can be set by the UP and Down buttons.