The experience gained over many years of activity in high voltage applications, it allows designers of the Company to be able to offer to its customers, always a solution that integrates projects on board or in fixed plants. TEM Electronics makes available , in addition, a wide range of measuring sensors in dc current and alternating current up to 30 kV ac , protection relay for direct current . The complete catalog offer a series of devices developed in these years, for the function of voltage presence, continuity check of the cables and in self-supply current plants.