A wireless sensor includes environment sensing structure, a radio frequency (RF) front-end, and a processing module. When the wireless sensor is positioned proximal to an object, a portion of the environment sensing structure senses an environmental condition in a remote area of the object that effects a characteristic of the RF front-end. The processing module generates a reference value representative of a known environmental condition in the remote area based on the effect on the characteristic of the RF front-end. The processing module generates a sensed value representative of an unknown environmental condition in the remote area based on the effect on the characteristic of the RF front-end when the environment sensing structure is sensing the unknown environmental condition. The processing module transmits, via the RF front-end, at least one of the reference value, the sensed value, or a difference between the reference value and the sensed value.