This is a European standard B-class pre-vacuum steam sterilizer, the chamber capacities are available in 18L and 23L. Its digital panel is designed simply, and all operations can be easily completed by pressing the buttons. It precisely displays the real-time chamber temperature, pressure readings and sterilization time monitored by sensors, and is equipped with LED indicators for displaying the liquid levels of distilled water and waste water tank, water quality information and sterilization cycle status information. This steam sterilizer also has test programs, customizable sterilization programs and preset functions.