Capacitive voltage tester PHE III as a combined design according to DIN VDE 0682-411 (EN/IEC 61243-1) for all-pole verification of the absence of voltage at the work site according to DIN VDE 0105-100 (EN 50110-1) in electrical systems. Category 'S' for switchgear and overhead lines and category 'L' for overhead lines. Can also be used in precipitation. With optical and acoustic display and self-test device.