The present invention relates to a wireless sensing apparatus 100. A wireless sensing apparatus 100 comprises a housing 200 containing one or more sensor devices 120A, 120B each configured to detect an environmental attribute in the vicinity of that sensor device, wireless communication circuitry 130 configured to transmit telemetry data from the one or more sensor devices 120A, 120B, and Near Field Communications (NFC) circuitry 140 configured to receive configuration data for the wireless sensing apparatus from an external device. The wireless sensing apparatus may be used for detecting an environmental attribute of a structure, such as a tunnel or building.