Non-contact current sensor is a product for which converts the intensity into a voltage or current proportional to the magnetic field strength measured by measuring the ambient magnetic field generated by the current flowing through the conductors to measure the current flowing through the wire. Precision current sensor (0.5%) has a Closed Loop products for outputting a compensation current to the coil by winding a coil on a magnetic core in order to compensate for the measured magnetic field. Relatively coarse current sensor (1%) has Opened Loop products converts the measured without winding for compensating for the measured magnetic field value as a voltage. Due to the compensation winding Closed Loop products are relatively expensive price than the Opened Loop products only, but it is relatively more precise. It is precisely than any of the current sensors, so New Fluxgate Current Sensors of HISEN-TECH to measure the DC / AC current to Magnetic Core itself without the use of Hall Effect Device for measuring a DC current. Existing Fluxgate Current Sensor is large in size and configuration is very complex, so the product has a very expensive price disadvantage. But New Fluxgate Current Sensor (0.01%) is a product of great technological achievements that allow you to meet the size, performance and cost by configuring the Smart complicated configuration. Patents registered in Korea as differentiation of these technologies (10-1329240) and the technology has been applied for international patent. Current Sensor using the Hall Effect Device for measuring current is a simple structure, while the characteristic of linearity,temperature,offset, disturbance is reletively poor and inexpensive. However, New Fluxgate Current Sensor has the advantage that all the various characteristics are far superior and the price is absolutely competitive superiority. Non-contact voltage sensor is a product measuring a voltage by measuring the fine current flowing here by connecting a very large resistance at both ends of the wire. The reason for connecting a very high resistance to both ends of the wire is intended to reduce the heat resistance. The flowing current is very low and the existing current sensors are earned an issue that is very difficult to measure because of the current low current measurement characteristics bad. Order to be able to better determine the fine current, by a lot of the primary winding in a non-contact current sensor to increase the scale of the current, there is generally available the existing voltage sensor products to facilitate this current measurement. In order to measure the high-precision voltage, because voltage sensor absolutely depends on the performance of the current sensor to accurately fine measuring low currents, If you use the New Fluxgate Current Sensor excellently to measure low currents, even with a much smaller primary winding there can only be a product of superior performance than any existing sensor voltage.