Testo 755-1 Current Voltage 600V Continuity Phase Sequence Tester is a game-changer in the multimeter market with its automatic test setup that selects the correct meter configuration to ensure accuracy and save time. The Testo 755-1 features detection of polarity on DC circuits, 3 phase sequence check and motor rotation indication, single lead testing with audible indication, interchangeable measuring tips, a built-in flashlight, and more.