Abstract: A sensing device and a method for sensing an electrical property of a test sample is provided. The sensing device includes a substrate, and a closed loop resonator and an open loop resonator arranged on the substrate, and are arranged in a cascade configuration, the open loop resonator including a first loop end and a second loop end arranged at an edge of the substrate and are configured to be in contact with the test sample. In this regard, the closed loop resonator is configured to couple in an input excitation and to transfer the input excitation towards the open loop resonator. Furthermore, the open loop resonator is configured to generate localized electric fields between the first loop end and the second loop end propagating through the test sample.