Abstract: The present disclosure presents wall-mounted near field communication systems and related methods. One such system comprises a sign assembly having a near field communication (NFC) tag configured to determine if the NFC tag has been tampered with. A mobile phone may connect with the NFC tag. If the exchange is valid and the NFC tag has not been tampered with, the system may perform an action such as allowing building access, connecting the mobile device to a resident's device, etc. If the NFC tag has been tampered with, the system may prevent building access or the like.

Abstract: The present disclosure presents wall-mounted near field communication systems and related methods. One such system comprises a sign assembly having a near field communication (NFC) tag comprising a first conducting member, a substrate assembly having a weakness area, wherein the substrate assembly comprises a plastic substrate; and first adhesive securing the NFC tag device to the substrate assembly such that the first conducting member is disposed proximate the weakness area.