The Olympus V Turbo Porte Cachee With Patented Lockable Pocket Door System Includes New Turbo Chill Technology For the Ultimate For Food Safety. Unit Has An Internal Sensor Monitoring Food Temperature That Is Preset To Activate Turbo Mode By Closing Motorized Night Shade If Product Reaches 39.5o Degree, Unit Will Stay In Brief Chilling Mode Until Product Achieves 37.5o Degree Which Will Then Reopen Front Night Shade.