Calibration function for customers who need more precise temperature and humidity management.
Calibration Method
With the power on, long press the UP and DOWN key at the same time for 3 seconds to enter calibration mode.
For example: when calibrating temperature +1 °C
Long press the UP and DOWN key simultaneously for 3 seconds; select 1CE with UP, DOWN key; press ENTER key; set +1 with UP, DOWN key; press ENTER key; press settings key.