Take the high microprocessor controlling,set inside with the double protect switch,has PID temperature controller and automatic adapted function.Automatic setup the best condition parameter,temperature controlling tolerance within 1degree.Use soft start function when the electric heating elements are in cold situations,starting  to heat up after dried, to prolong the heating elements working life.Various alarm functions and protect functions when thermocouple,keep safety The output connection use the international standard industry plug ,widely used in hot runner system around the world.