A High Voltage Tester is a critical electrical testing tool used to assess the insulation strength, safety performance, and durability of components and equipment that operate at high voltages. These testers apply controlled high voltage to a device or substance to see if it can handle the electrical stress without failing or leaking current.
High voltage testers are widely used in industrial manufacturing, electrical maintenance, power distribution, automotive systems, HVAC, aerospace electronics, and quality control laboratories. They assist technicians in identifying insulating deficiencies, preventing equipment failure, and ensuring compliance with international safety standards such as IEC, IEEE, UL, and EN regulations.

