Abstract: A high voltage measuring device used to measure the amount of voltage in an alternating current carrying line. When in use no connections or physical contact are made between the line and the measuring device. Generally, the measuring device acts according to the capacitor divider principle with two capacitors. One electrode of one capacitor is the high voltage line itself and the other electrode of this same capacitor is a spaced flat circular plate located on the measuring device. The measuring device electrode is insulated near its periphery and connected to a low voltage capacitor having a low loss and good temperature coefficient. This capacitor forms the other part of the capacitor divider.