PROFISAFE 690B (M630H) Voltage and Continuity Tester in accordance with DIN EN 61243-3 / VDE 0682-401., Voltage test. Phase test. Polarity test. Phase sequence indication. Continuity test. Display: 7 steps (bargraph) 12, 24, 50, 120, 230, 400, 690 V. Rugg