Sdu-1204-00 is installed newly made dry units u-2005f by toyo living, the first developer of electronic dry cabinets in japan since 1974. The outstanding feature of sdp series is fast recovery after door-open-close, with the everlasting advantages of constant ultra low humidity, high reliability and low power consumption. And it is widely used in the fields of electronics, optics, chemicals, labs, especially for the occasion with frequent door opening. It keeps min. 0%rh and suit for moisture sensitive components with all msls.