Applicable range: The vacuum drying boxes are widely applied to fields such as biochemistry, chemical pharmaceutical, medical treatment, agricultural research, environmental protection and so on, used for powder drying, baking, and sterilizing and disinfection for various glass containers. It is especially suitable for drying the materials of heat-sensitive, easily decomposed, oxidable or with complicated composition quickly and high efficiently. Product features: 1. Cuboid working chamber enables its effective volume reaches the largest, microcomputer based temperature controller, with accurate and reliable temperature control. 2. Toughened and bullet-proof double glazed glass door, it is clear at a glance when viewing the objects inside the working chamber. 3. Tightness degree of the box door is adjustable, integrated formed silicon rubber seal ring for gate guarantees high vacuum degree inside the chamber. 4. Adoption of stainless steel working chamber guarantees durable of product. 5. Besides the above mentioned functions, the upgraded LCD vacuum drying box also has LCD temperature display and more accurate temperature control. The digital display vacuometer adopts digital control technology for vacuum degree, controls the vacuity by vacuometer automatically. The vacuometer employs resistance silicon pipe pressure sensor for guaranteeing stable pressure value and free of the effect of airflow, and sending stable pressure value to the LED screen of vacuometer, the control accuracy is ±1%, it change the history of manual lever control. Besides, it can be equipped with RS-485 interface (optional) that is used to connect it with the recorder and computer for recording the changing conditions of temperature parameters.