1.It has 30 prefebaricated multi-segment and multi-segment free-form temperature programmbale functions, selectable multiple startup methods, arbitrary skip operation, and manual modification of the current running clock; when STA=0, it can be used as a fixed-value controller. 2.In the heating section, in order to prevent the possbility of a large deviation when the power is turned off and then on(SP-PV), which may cause the destruction of the instantansous high-power output system, the "3" item in the STA menu will automatically When PV starts, it is guaranteed that(SV-PV)=0 deviation when power is turned on again. 3.Display the running status of the program, which is more intuitive and clear. 4. The machine can be configured with externally set SV value; optional dual output cooling and heating control mode. 5.Slope temprature compensation. 6.Provide four communciation formats.