A sensor device for use in detecting current in a conductor, said sensor device comprising: a non-magnetic substrate comprising a plurality of bobbins (124, 126, 128, 130, 132, 134) hingedly connected to each other for pivotal movement therebetween, each bobbin being fabricated of a dielectric material and said plurality of bobbins defining an aperture structured to receive a conductor therein; a coil comprising a plurality of coil turns wound about each of said plurality of bobbins, the coil being formed by multiple turns of a magnet wire coiled on each bobbin by which a plurality of turns of the wire are formed on a first of said bobbins and then successively on each of the other bobbins to and including the last of said bobbins, and then back along the bobbins from the last of said bobbins successively back to and including the first of said bobbins; a first shield extending between each of said plurality of bobbins and said plurality of coil turns; said first shield being formed by multiple turns of a magnet wire coiled over an outer surface of each bobbin by which a plurality of turns of the wire are formed on a first of said bobbins and then successively on each of the other bobbins to and including the last of said bobbins, and then back along the bobbins from the last of said bobbins successively back to and including the first of said bobbins; a second shield positioned proximate to said plurality of coil turns, opposite said first shield such that said plurality of coil turns is between said first shield and said second shield, said second shield being formed by a plurality of turns of a segment of the same magnet wire from which the first shield is formed, said segment of said same magnet wire being coiled on each bobbin by which a plurality of turns of the wire are formed on a first of said bobbins and then successively on each of the other bobbins to and including the last of said bobbins, and then back along the bobbins from the last of said bobbins successively back to and including the first of said bobbins and a plurality of lead wires (136, 138, 144, 236, 238, 244, 245) extending from the sensor device, two of said lead wires (136, 138, 236, 238) extending from respective ends of the magnet wire forming the coil, and a third lead wire (144, 244, 245) extending from one of said first and second shields. a non-magnetic substrate comprising a plurality of bobbins (124, 126, 128, 130, 132, 134) hingedly connected to each other for pivotal movement therebetween, each bobbin being fabricated of a dielectric material and said plurality of bobbins defining an aperture structured to receive a conductor therein; a coil comprising a plurality of coil turns wound about each of said plurality of bobbins, the coil being formed by multiple turns of a magnet wire coiled on each bobbin by which a plurality of turns of the wire are formed on a first of said bobbins and then successively on each of the other bobbins to and including the last of said bobbins, and then back along the bobbins from the last of said bobbins successively back to and including the first of said bobbins; a first shield extending between each of said plurality of bobbins and said plurality of coil turns; said first shield being formed by multiple turns of a magnet wire coiled over an outer surface of each bobbin by which a plurality of turns of the wire are formed on a first of said bobbins and then successively on each of the other bobbins to and including the last of said bobbins, and then back along the bobbins from the last of said bobbins successively back to and including the first of said bobbins; a second shield positioned proximate to said plurality of coil turns, opposite said first shield such that said plurality of coil turns is between said first shield and said second shield, said second shield being formed by a plurality of turns of a segment of the same magnet wire from which the first shield is formed, said segment of said same magnet wire being coiled on each bobbin by which a plurality of turns of the wire are formed on a first of said bobbins and then successively on each of the other bobbins to and including the last of said bobbins, and then back along the bobbins from the last of said bobbins successively back to and including the first of said bobbins and a plurality of lead wires (136, 138, 144, 236, 238, 244, 245) extending from the sensor device, two of said lead wires (136, 138, 236, 238) extending from respective ends of the magnet wire forming the coil, and a third lead wire (144, 244, 245) extending from one of said first and second shields.