Features: * Desktop freeze dryer , the shelter is freeze-dried in situ and the freeze-dried items do not need to be moved. * PLC programmable control system, with waterproof and anti-electromagnetic interference design; product function upgrade and iteration can be realized by updating the software program. * Adopt 7-inch LCD touch screen, full touch operation, no need for buttons; freeze-drying operation, system parameter setting, data viewing and other functions can be performed through the screen; real-time display of parameters such as vacuum degree, sample temperature, and cold trap temperature by numbers and curves. * With English interface. * It has the self-checking function of main functional components, which can realize the start and stop of individual components and check the working status； * The operation interface can display the current running time, and has the screen date and time calibration function at the same time. * You can set 40 groups of freeze-drying programs, and each group of programs can set 40 process curves; You can also set parameters such as separator temperature, running time, vacuum degree, etc. for each process curve； * The freeze-drying procedure can be named in three ways: Chinese, English and numbers, which is convenient for the correct selection of the process without confusion. * High-performance partition cooling and heating technology, the cooling speed of the partition and the heating speed of the partition can reach 3.5℃/min; * Manual and automatic integrated program mode. Manual program mode can realize manual exploration of process parameters in stages; automatic program mode can be started with one key, from pre-freezing, starting the vacuum pump to the end of freeze-drying, the whole process runs automatically without manual operation. * Adopt Pirani vacuum gauge, the display accuracy of vacuum degree reaches 0.01Pa. * Vacuum pump with excellent performance, pumping from normal pressure to 10Pa≤15min. * Automatically record the running time of the vacuum pump, and can independently set and modify the maintenance cycle of the vacuum pump. * Equipped with a vacuum pump anti-return oil device to prevent the vacuum pump oil from entering the equipment and polluting materials when the power is cut off； * The current and historical freeze-drying data and freeze-drying curve can be viewed in real time； * Built-in large-capacity storage module. It can store no less than 10,000 freeze-drying curves and alarm records； * Set the three-level account password authority to realize user hierarchical operation and protect the freeze-drying process and freeze-drying data. * It has the function of self-diagnosis of refrigeration system failure, and has the functions of vacuum pump due maintenance alarm and vacuum degree over-limit alarm function. * The alarm record is automatically stored and can be queried in real time. The alarm is prompted by sound and text at the same time. * Standard USB interface, which can export historical freeze-dried data. * With cold trap electric defrosting function. * The drying room adopts colorless transparent plexiglass door and acrylic aviation material. The sample is clear and intuitive, and you can observe the whole process of freeze-drying. * The sample separator is designed in parallel with the cold trap to maintain temperature consistency to the greatest extent； * Certification: ISO9001, CE certification.