1.With electronic pointer thermostatic controller,the accuracy is higher(±2℃). * 2.Integrating the heater and heater plate,it is safer and more servicealbe with even heating surface. * 3.Adopt TEFLON as antiseize clad layer for heating pad. * 4.Electric time control and signal indicator after process complete. * 6.Fix high temperature resistant froth silica gel,can bear maximum 350℃ without any distortion.