1.Microcomputer control fully .Interface for operation and control easily. 2.Set up the parameters according to the products or workers in advance, shift quickly and raise efficiency. 3.Speed governing by pwm electric motors of microcomputer, improve its characteristics and achieve zero current inverting to expand its service time. 4.Pid heating controller is optimized to set the temperature fast to raise efficiency. 5.Perfect heater protection.Restart it as soon as the heater is turned off. 6.Alarm of temperature anomaly. Packing: 1 unit/wooden case Volume: 135cmx75cmx160cm Gross weight: 193kg