Fluke ST120+ GFCI Socket Tester with Beeper (ST120+)

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The Fluke ST120+ GFCI Socket Tester with Beeper checks that each wire in the outlet is properly connected to the building's electrical system. Via the bright LEDs and included char t, you can quickly and easily verify the wiring of an outlet. Able to identify several common wiring errors, including reversed phase and neutral wires and an open ground, the ST120+ will give you confidence on your next job. Show more