The HYG2670F insulation and dielectric strength tester is a high-performance insulation and dielectric strength tester. It can simultaneously display insulation resistance, dielectric strength and breakdown current values, and has multiple test functions. The high voltage output accuracy of this series of testers is high (better than 5%), the leakage current test accuracy is high (better than 5%), and the insulation resistance test speed is fast. It is suitable for rapid flow testing on production lines and for laboratory multi-function high precision requirements. The measurement principle of the instrument conforms to the safety performance test requirements of GB4706.1, GB3883.1 and GB4943, and can be used to test the electrical strength and insulation resistance of devices with basic insulation, additional insulation and reinforced insulation. It is suitable for safety testing of household appliances, electric power equipment, communication equipment, automobiles, machinery and other industries.