The clamp-type current sensor is a high-precision AC current transformer, adopt the clamp-shaped structure design. It can be quickly and easily accessed and used . The compact size is more portable and easier to use. Suitable for detection of AC current, leakage current, higher harmonic current, phase, electrical energy, power, power factor and other tests. It can be used with a variety of measuring instruments, such as: Watt-hour meter field calibrator, multi-function energy meter, oscilloscope, digital multimeter, cable identification, cable fault detector, double clamp grounding resistance tester, dual-clamp phase volt-ampere Tables, etc., can measure and compare various electrical parameters under the state of being uninterrupted. Widely used in substations, power plants, industrial and mining enterprises and testing stations, electrical maintenance departments for current detection and field electrical work.