1.It has 30 prefabricated multi-segment and multi-segment free-form temperature programmable 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 hearing section, in order to prevent the possibility of a large deviation whrn the power is turned off and then on(SV-PV),which may cause the destruction of the instantaneous 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 externalyy set SV value; optional dual output cooling and heating control mode. 5.Slope temperature compensation. 6.Provide four communciation formats.