A flexible lid seal detector comprising: a cylindrical compression body having a longitudinal axis, comprising: a longitudinal central cavity having an axis co-axial with the longitudinal axis of the cylindrical compression body; a distal end having a distal surface; the flexible lid detector further comprising a sensor disposed within the longitudinal central cavity; characterized in that the distal end comprises a plurality of mutually concentric compression rings (406a,b) surrounding the longitudinal cavity and protruding from the surface of the distal end, wherein an outer-most compression ring of the plurality of mutually concentric compression rings is defined by a first outer shaping rim and a first inner shaping rim, an inner-most compression ring of the plurality of mutually concentric compression rings is defined by a second outer shaping rim and a second inner shaping rim, and wherein the outer-most compression ring has a first height (h 1), the inner-most compression ring has a second height (h 2) and the first height is greater than the second height (h 2); wherein each of said first and second height is a vertical height measured from the distal surface of the distal end and a recessed lid deflection volume defined by the first inner shaping rim and the distal surface of the distal end of the cylindrical compression body; and wherein the recessed lid deflection volume is configured to receive a first portion of an outer surface of a flexible lid if at least one of the plurality of compression rings contacts and applies a compressive force to a second portion of the outer surface of the flexible lid thereby deforming the first portion of the outer surface of the flexible lid into the lid deflection volume. a cylindrical compression body having a longitudinal axis, comprising: a longitudinal central cavity having an axis co-axial with the longitudinal axis of the cylindrical compression body; a distal end having a distal surface; the flexible lid detector further comprising a sensor disposed within the longitudinal central cavity; a longitudinal central cavity having an axis co-axial with the longitudinal axis of the cylindrical compression body; a distal end having a distal surface; the flexible lid detector further comprising a sensor disposed within the longitudinal central cavity; characterized in that the distal end comprises a plurality of mutually concentric compression rings (406a,b) surrounding the longitudinal cavity and protruding from the surface of the distal end, wherein an outer-most compression ring of the plurality of mutually concentric compression rings is defined by a first outer shaping rim and a first inner shaping rim, an inner-most compression ring of the plurality of mutually concentric compression rings is defined by a second outer shaping rim and a second inner shaping rim, and wherein the outer-most compression ring has a first height (h 1), the inner-most compression ring has a second height (h 2) and the first height is greater than the second height (h 2); wherein each of said first and second height is a vertical height measured from the distal surface of the distal end and a recessed lid deflection volume defined by the first inner shaping rim and the distal surface of the distal end of the cylindrical compression body; and an outer-most compression ring of the plurality of mutually concentric compression rings is defined by a first outer shaping rim and a first inner shaping rim, an inner-most compression ring of the plurality of mutually concentric compression rings is defined by a second outer shaping rim and a second inner shaping rim, and wherein the outer-most compression ring has a first height (h 1), the inner-most compression ring has a second height (h 2) and the first height is greater than the second height (h 2); wherein each of said first and second height is a vertical height measured from the distal surface of the distal end and a recessed lid deflection volume defined by the first inner shaping rim and the distal surface of the distal end of the cylindrical compression body; and wherein the recessed lid deflection volume is configured to receive a first portion of an outer surface of a flexible lid if at least one of the plurality of compression rings contacts and applies a compressive force to a second portion of the outer surface of the flexible lid thereby deforming the first portion of the outer surface of the flexible lid into the lid deflection volume.