The YZZ-10A DC resistance tester is an essential testing instrument in power test requirements. It is a high-precision replacement for DC single and double-arm bridges. The tester uses precise constant current power supply processing technology internally. The YZZ-10A DC resistance tester displays measurement results on a four-and-a-half-digit LCD, and the current ambient temperature or output current value on a three-and-a-half-digit LCD, ensuring clear readings even under strong light. It also features an automatic discharge function to avoid arcing. The YZZ-10A DC resistance tester offers fast testing speed, high accuracy, strong anti-interference capability, compact size, and is unaffected by human factors. The output current has five gears for manual quick adjustment, with a measurement range of 1μΩ-2kΩ and an error not exceeding 0.2%. The YZZ-10A DC resistance tester is an ideal device for measuring various inductive load resistances such as power transformers, low-voltage switch contact resistance, wire and cable or weld joint resistance, and DC resistance of high-power inductive equipment. Its measurement speed is more than a hundred times faster than a bridge. The YZZ-10A DC resistance tester is powered by AC supply and is suitable for use in the field and under harsh mountain forest conditions.