Insulated structure for an appliance

An insulated structure for an appliance, comprising:

• a plurality of walls;
• a cavity defined by the plurality of walls;
• an aperture defined by one of the plurality of walls, wherein the aperture is employed in evacuating the cavity to establish a less-than-atmospheric pressure within the cavity;
• a base structure coupled to an interior surface of the one of the plurality of walls that defines the aperture, wherein the base structure is aligned with the aperture, wherein the base structure defines one or more channels, wherein at least one of the one or more channels is positioned over the aperture;
• a pressure sensor that is received by the base structure, wherein the base structure and the pressure sensor together define a pressure-sensing assembly, and wherein the pressure sensor is a microelectromechanical system;
• and
• a cover that is removably coupled to the aperture, wherein a position of the pressure-sensing assembly remains constant independent of whether the cover is in a coupled state or a decoupled state relative to the aperture, wherein the pressure-sensing assembly fits below the cover when the cover is in the coupled state.