Product Overview: The fully automatic low-voltage withstand voltage tester, box-type HZSY-313, also known as the insulation withstand voltage tester, is a lightweight testing equipment specifically designed and produced by our company. This tester is characterized by its ease of use and maintenance, superior performance, safe and reliable operation, elegant and sturdy appearance, as well as convenient mobility. It is an essential equipment for power supply companies, large factories, metallurgy plants, power plants, switch manufacturers, railways, and other power maintenance departments.