There are four control modes: PID automatic control, standby, manual control and self-tuning. Temperature control up to 450 ℃. Soft start for dehumidification. One key flexible switching of thermocouple J & K type The setting operation is simple and easy to understand. Lock function to prevent modification. One key elimination of one-time alarm buzzer. Integrated chassis design, compact structure and small space. Restore factory setting function. Alarm function to remind each error code. Over temperature and low temperature alarm. Short circuit, open circuit and polarity error alarm of heaters and thermocouples can effectively protect the hot runner system. Supply Voltage 380V