A hot runner temperature controller is a device that continuously maintains the desired temperature. The hot runner temperature is mainly detected and calculated by an intelligent computer chip (MCU) in the monitoring core. Then the output voltage of the heater is controlled to control the calorific value to achieve the temperature target value. 1-2 Zone hot runner temperature controller is an integrated built-in temperature controller, which is different from the conventional plug-in chassis in design and structure. Still, the working principle is exactly the same.