... of high effective dehumidifying,long using time,low dew point. Micro-thermal freezer dehumidifying dryer,dried through cooling ... recycle,with excellent dehumidifying effect. Characters:(1):pressure dew point<-70C,(2):eight-hours standard recycling,automatic punch ... temperature and automatic shutdown.(4):The dew point meter shows the dew point of the air,stable dew point without curve fluctuating.