SCD Series desiccant dryer combination set feeding dry, dehumidify, and feeding three functions into one, especially for highly hygroscopic plastic handle. The family style points all secret formula (the minicomputer) and semi-open (mainframe), the structure of SD-H series with honeycomb dehumidifier with stainless steel insulation under the blow dry and style barrel and closed loop features a combination of feed Sec. This series of products provides centralized control of microcomputer automatic fault display and 24-hour timer setting function automatic operation, can still touch human-machine interface and optional dew point meter for matching.