HHD-ESM series models are standard equipped with a special LCD controller for dryers, main power circuit breakers, over-temperature circuit breakers, new overheat protectors, and alarm lights, with precise temperature control and complete functions. Protect the life of the fan and electric heating tube, safe and reliable. the standard configuration of the magnetic base increases the magnetic protection of the barrel discharge port, Functions include: PID temperature control, AT self-tuning, temperature control accuracy ± 1 degree, electric heating tube disconnection alarm, and weekly calendar timing Power on and off, shutdown delay fan off, intermittent operation, over-temperature alarm, over-temperature trip output to cut off power supply, RS485 network communication, safety circuit conforms to CE standards.