1. It has 30 prefabricated multi-segment and multi-segmenr free form temperaute programmable functions, seletable 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 possibility of a large devication when 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 devication when power is turned on again. 3. Display the running status of the program, which is more inituitive and clear. 4.The machines can be configured with externally set SV value; optional dual output cooling and heating control mode. 5.Slope temperature compensation. 6.Provide four communication formats.