Pressure transition indicator and vacuum insulation panel equipped therewith for signaling loss of vacuum

A remotely interrogatable pressure transition indicator, comprising:

• (a) a pressure sensitive element operable for transitioning between first and second conditions induced by a change in external gaseous pressure experienced by the pressure sensitive element, and
• (b) a remotely interrogatable mechanical switch operable for transitioning between (i) a first state producing a first interrogatable value wherein the first state is indicative of a pressure induced status of the pressure sensitive element in the first condition representing a first external pressure experienced by the pressure sensitive element, and (ii) a second state producing a second interrogatable value different from the first interrogatable value, wherein the second state is indicative of a pressure induced status of the pressure sensitive element in the second condition representing a second external pressure experienced by the pressure sensitive element, wherein the first external pressure is lower than the second external pressure.