The Semi-Automatic Autoclave is an affordable sterilizer for private clinics that do not want to compromise on quality, safety and reliability. Tuttnauer semi-automatic autoclaves are an effortless Plug n' Play solution. After installation, the sterilizer is virtually maintenance free with reduced running costs. Tabletop Simplicity At Work Model Chamber Volume M Series 2340M 2540M 3140M 3850M 3870M 19 Liter 23 Liter 34 Liter 64 Liter 85 Liter Model Chamber Volume MK Series 1730MK (ValueKlave) 2340MK 2540MK 7.5 Liter 19 Liter 23 Liter Safety and Convenience features: Heat insulation and quiet operation for pleasant office environment Durable 316L stainless steel chamber and door with electro-polish finish Double locking safety device prevents door from opening while chamber is pressurized Steam pressure activated lock prevents door from opening if chamber is pressurized Door failure protection prevents door from opening at high pressure Automatic safety shutoff prevents overheating Insufficient water detector with automatic shutoff