Fluke ST120 Socket Tester with GFCI Scales Standard and metric size markings

Standard and metric size markings for fast adjustment

Convenient slit for wrapping repair sites

Blow-molded Case

The metal clip attaches holder securely to belt or pocket

Blade cuts in both directions (push and pull)

Fluke ST120 Socket Tester with GFCI Scales Standard and metric size markingsFluke ST120 Socket Tester with GFCI Products usually ship within 1 business day. The Fluke ST120 GFCI Socket Tester checks that each wire in the outlet is properly connected to the building's electrical system. Via the bright LEDs and included chart, 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