Abstract: A commodity monitoring system includes a cable assembly in communication with at least one computing device. The cable assembly includes a plurality of cables, each cable including a pair of conductors and a plurality of sensor nodes secured to the plurality of cables. Each sensor node of the plurality of sensor nodes includes a circuit board disposed within a respective cable of the plurality of cables and interposed between the pair of conductors of the respective cable, wherein each lateral side surface of the circuit board faces a respective conductor of the pair of conductors of the respective cable, and wherein each lateral side surface of the circuit board is oriented at least substantially perpendicular to a plane extending between longitudinal axes of the pair of conductors of the respective cable and within which the center longitudinal axes of the pair of conductors lie.