Introducing the Fluke ST120/120+ GFCI Socket Tester

Save time and find peace of mind with the ST120 and ST120+ socket testers.

• Simple Operation: Plug into a socket and verify correct wiring or identify common wiring problems in both standard and GFCI outlets with bright, easy-to-see LEDs.
• Save Time: Eliminate multiple trips back and forth by using the beeper to help identify if breaker is switched on or off (ST120+ model only).
• GFCI Testing: You can feel secure knowing that your GFCI equipped outlets are functioning properly with an integrated GFCI test.