P0 ①: Delay start 0-60 minutes
P1 ②: Delay start 0-60 minutes
P2 High temperature alarm P3~120°C 120°C
P3 Low temperature alarm P2~-55°C -55°C
How to restore factory Settings
press the "Down 1" and "Down 2" button at the same time, the factory setting is restored
Temperature correction
Press “Up 1 ”and “Down 1 ”at the same times for 3 second. positive value = measured value + corrected value(group 2 temperature correction is the same method )
Heating Mode--Start temperatureStop temperature
You can set 1 heating 1 cooling or 2 cooliong or 2 heating.

Set startup temperature:
Press the "up" button once to display the starting temperature. Long press the "up" button for about 3 seconds,The required temperature can be set by the up and down keys
Set the stop temperature:
Press the button once to display the stop temperature. Long press the button for about 3 seconds and the stop temperature number flashes. The required temperature can be set by the up and down keys
Press "Up 1" Button & "Up 2"Button at the same time to setting mode