Fluke ST120 GFCI Socket Tester Without Beeper

Name: Fluke ST120 GFCI Socket Tester Without Beeper
SKU: 164544
Availability: InStock

4.8 | 287 ratings

Price: 7.99

Last update: 02-26-2025

About this item

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
Eliminate multiple trips back and forth by using the beeper to help identify if breaker is switched on or off

From the manufacturer

Fluke ST120 GFCI 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 Socket Tester

Fast visual identification of all 6 wiring conditions

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 on the front of the tester, 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.

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.

	ST120+	ST120

Customer Reviews	1,298	270
Price	$19.54	$7.99
Audible Voltage Alert	Yes	No
Rated Operating Voltage	110 - 125 V AC	110 - 125 V AC
Wattage	.3 W	.3 W
Frequency	50/60 Hz	50/60 Hz
GFCI Test	Yes	Yes
Indicator Lights	1 Red, 2 Green LEDs	1 Red, 2 Green LEDs
Rating	CAT III 300V	CAT III 300V

Top reviews from the United States

Kerry D.

Indicates Problems as Expected

Reviewed in the United States on December 15, 2024

The unit works well at showing problems with outlets. I tested it on known issues and it worked well. There are other units out there that are more compact that do the same job, but the Fluke has more visible lights.

Darin

Fluke Qualty, decent price.

Reviewed in the United States on November 7, 2023

Works great for quick checks on outlets. Great for new installs or to check the receptacles you may be concerned with.

WOC

Easy to use

Reviewed in the United States on March 1, 2024

Well made and works well

Alex Laureano

Time saver

Reviewed in the United States on July 22, 2024

Accurate, compact and handy. This product has the Fluke quality you could expect

roxxman

A trusted brand but missed the mark

Reviewed in the United States on July 16, 2024

OK, I have used Fluke products for over 40 years and they are dependable, well made and rugged. The price was cheap for a Fluke but the design of the form factor was mot well thought out. It worked well for testing standard outlets in the house but I had to use a short extension cord in order to test my outside GFCI receptacles. The unit would not fit into the receptacles due to the enclosure of the GFCI box.
Other than that little inconvenience, I like the tester. It is well built and seems to be durable.
Made in China

N. molaris

Great product

Reviewed in the United States on December 21, 2024

Great tool

Lyonzden

Works great- problem identified and solved

Reviewed in the United States on November 9, 2024

I had a plug that stopped working. This item showed me I had an “open neutral” meaning the white wire came loose or was detached somewhere in the circuit. When I located the wires and tightened them down in the connectors that preceded the outlets I got the double green lights showing it was connected properly. A household must

Tjecontact

Very Useful Tool

Reviewed in the United States on January 18, 2025

This socket tester works great and it helped me expose an outlet that was miss-wired. Would definitely suggest every home should have one of these babies.

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