A barrier device configured to be provided relative to a barrier and to output, to a measurement device or system, data corresponding to characteristics of the barrier device to identify whether the barrier device is installed correctly or is no longer installed correctly and/or data corresponding to characteristics of the barrier device associated with use of the barrier device when installed, the barrier device comprising: a body configured to be provided on or at least partially in the barrier; and at least one characteristic measurement component provided in or on the body configured to output to the measurement device or system the data corresponding to characteristics of the barrier device to identify whether the barrier device is installed correctly or is no longer installed correctly and/or the data corresponding to characteristics of the barrier device associated with use of the barrier device when installed; wherein the barrier device is a fire-protection sleeve configured to provide at least fire protection to components provided therein and between adjacent spaces separated by a corresponding barrier and wherein the barrier device is a fire-protection sleeve configured be installed relative to the barrier such that at least one portion is exposed from the barrier and at least one portion is unexposed from the barrier, and wherein the body is a housing that defines an inner volume between a first end of the housing and a second end of the housing separated from the first end in a longitudinal direction of the housing, wherein the barrier device further comprises at least one flange (327, 329) configured to be movable from the first end of the housing toward the second end of the housing to provide a compressive force to a first side of the barrier and a restraining force to the housing when the barrier device is installed, and wherein at least one second characteristic measurement component is provided in or on the first flange and configured to output from the barrier device to the measurement device or system the data corresponding to characteristics of the barrier device to identify whether the barrier device is installed correctly or is no longer installed correctly, including whether the at least one flange is installed correctly or is no longer installed correctly; and wherein the barrier device further comprises a flange gasket (328, 330) configured to be provided between the at least one flange and the barrier when the barrier device is installed, and wherein the at least one second characteristic measurement component is provided relative to the flange gasket to detect characteristics of the flange gasket for output from the barrier device to the measurement device or system as the data corresponding to characteristics of the barrier device to identify whether the barrier device is installed correctly or is no longer installed correctly, including whether the at least one flange is installed correctly or is no longer installed correctly. a body configured to be provided on or at least partially in the barrier; and at least one characteristic measurement component provided in or on the body configured to output to the measurement device or system the data corresponding to characteristics of the barrier device to identify whether the barrier device is installed correctly or is no longer installed correctly and/or the data corresponding to characteristics of the barrier device associated with use of the barrier device when installed; wherein the barrier device is a fire-protection sleeve configured to provide at least fire protection to components provided therein and between adjacent spaces separated by a corresponding barrier and wherein the barrier device is a fire-protection sleeve configured be installed relative to the barrier such that at least one portion is exposed from the barrier and at least one portion is unexposed from the barrier, and wherein the body is a housing that defines an inner volume between a first end of the housing and a second end of the housing separated from the first end in a longitudinal direction of the housing, wherein the barrier device further comprises at least one flange (327, 329) configured to be movable from the first end of the housing toward the second end of the housing to provide a compressive force to a first side of the barrier and a restraining force to the housing when the barrier device is installed, and wherein at least one second characteristic measurement component is provided in or on the first flange and configured to output from the barrier device to the measurement device or system the data corresponding to characteristics of the barrier device to identify whether the barrier device is installed correctly or is no longer installed correctly, including whether the at least one flange is installed correctly or is no longer installed correctly; and wherein the barrier device further comprises a flange gasket (328, 330) configured to be provided between the at least one flange and the barrier when the barrier device is installed, and wherein the at least one second characteristic measurement component is provided relative to the flange gasket to detect characteristics of the flange gasket for output from the barrier device to the measurement device or system as the data corresponding to characteristics of the barrier device to identify whether the barrier device is installed correctly or is no longer installed correctly, including whether the at least one flange is installed correctly or is no longer installed correctly.