Features Automatic door switch Quality stainless steel inner tank, sealed cover Microcomputer control Safety interlocking device With BD test,HELIX test, Vacuum test. LED display and inductive operation Equipped with standard test interface European CLASS B standard. With automatic protection function: over temperature protection, over pressure protection, low water level protec tion, anti dry burning, safety door lock. Three times per-vacuum Buzzer reminder after sterilization, automatic stop. Automatic discharge of cold air, automatic steam exhaust after sterilization. Built-in steam generator to provide saturated steam quickly Built-in printer