Portable high voltage meters are handheld devices used to measure high voltage in electrical systems, providing accurate and safe voltage readings. They are used in applications such as electrical maintenance, power line testing, and high-voltage equipment testing, ensuring reliable and convenient high-voltage measurement. Portable high voltage meters offer features such as high input impedance, safety isolation, and easy-to-read displays, making them essential for field measurements and diagnostics. Their ability to provide reliable and safe high-voltage measurement makes them valuable for maintaining high-voltage systems.