


Fluke ST120+ GFCI Socket Tester with Audible Beeper

Fluke Genuine Accessories
Get the right case to protect your tools, and with our breadth of soft and hard cases available, you're never short on choices. Other available accessories include non-contact detectors, probes and hat lights, meter hangers, and appropriately rated test probes that improve your safety and proficiency.
Fluke ST120+ Socket Tester
Audible beep alert helps you work faster, safer
The Fluke ST120+ GFCI Socket Tester checks that each wire in the outlet is properly connected to the building’s electrical system. The ST120+ also gives you a unique audible alert anytime voltage is detected which can also be silenced if needed. Save time when trying to identify which circuit breaker is connected to which outlet. Just plug the socket tester in, walk to the circuit breaker panel, and listen for the beeper to turn off – or on – as you flip the breakers.
- Integrated GFCI test button to verify the correct operation of GFCI equipped outlets
- Bright LEDs for fast, easy identification of miswired outlets
- Compact, rugged design for use at every job
Key Features

Simple Orientation
Plug into outlet; with the bright, easy-to see LEDs, verify correct wiring or identify common wiring problems in both standard and GFCI receptacles.

GFCI Outlets
The GFCI test button allows you to test the operation of GFCI outlets. With a single push, the ST120+ can verify the operation of your GFCI equipped outlet. If the GFCI trips as expected, perfect, you can move on. If not, it's time to take a closer look.

Know More, Faster
With the handy chart, quickly identify one of six wiring conditions for the outlet.

Hear the Results
Eliminate multiple trips back and forth by using the audible beeper to help identify if a breaker is switched on or off. The audible beeper lets you know anytime voltage is detected.


Fluke ST120+ Socket Tester

Fluke Genuine Accessories
Get the right case to protect your tools, and with our breadth of soft and hard cases available, you're never short on choices. Other available accessories include non-contact detectors, probes and hat lights, meter hangers, and appropriately rated test probes that improve your safety and proficiency.

Fluke ST120+ GFCI Socket Tester with Audible Beeper
Audible beep alert helps you work faster, safer
The Fluke ST120+ GFCI Socket Tester checks that each wire in the outlet is properly connected to the building’s electrical system. The ST120+ also gives you a unique audible alert anytime voltage is detected which can also be silenced if needed. Save time when trying to identify which circuit breaker is connected to which outlet. Just plug the socket tester in, walk to the circuit breaker panel, and listen for the beeper to turn off – or on – as you flip the breakers.
- Integrated GFCI test button to verify the correct operation of GFCI equipped outlets
- Bright LEDs for fast, easy identification of miswired outlets
- Compact, rugged design for use at every job
Key Features

Simple Orientation
Plug into outlet; with the bright, easy-to see LEDs, verify correct wiring or identify common wiring problems in both standard and GFCI receptacles.

GFCI Outlets
The GFCI test button allows you to test the operation of GFCI outlets. With a single push, the ST120+ can verify the operation of your GFCI equipped outlet. If the GFCI trips as expected, perfect, you can move on. If not, it's time to take a closer look.

Know More, Faster
With the handy chart, quickly identify one of six wiring conditions for the outlet.

Hear the Results
Eliminate multiple trips back and forth by using the audible beeper to help identify if a breaker is switched on or off. The audible beeper lets you know anytime voltage is detected.















