---
product_id: 470971135
title: "Fluke ST120 GFCI Socket Tester Without Beeper"
brand: "fluke"
price: "C$2174"
currency: NIO
in_stock: true
reviews_count: 13
category: "Fluke"
url: https://www.desertcart.ni/products/470971135-fluke-st120-gfci-socket-tester-without-beeper
store_origin: NI
region: Nicaragua
---

# Bright LEDs for instant wiring status Integrated GFCI test button for safety check Compact rugged design for every jobsite Fluke ST120 GFCI Socket Tester Without Beeper

**Brand:** fluke
**Price:** C$2174
**Availability:** ✅ In Stock

## Summary

> ⚡ Test smarter, work safer—never miss a miswire moment!

## Quick Answers

- **What is this?** Fluke ST120 GFCI Socket Tester Without Beeper by fluke
- **How much does it cost?** C$2174 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/470971135-fluke-st120-gfci-socket-tester-without-beeper)

## Best For

- fluke enthusiasts

## Why This Product

- Trusted fluke brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged & Portable:** Compact, durable design fits in your toolkit and stands up to daily jobsite demands.
- • **Eliminate Guesswork:** Clear LED patterns paired with an easy-to-read reference table make troubleshooting fast and foolproof.
- • **Trusted Fluke Quality:** Backed by a top-rated brand known for precision and reliability in electrical testing tools.
- • **Instant Wiring Diagnosis:** Bright, outward-facing LEDs let you spot miswiring from across the room—no squinting required.
- • **Built-In GFCI Safety Test:** One-button GFCI trip verification ensures your outlets protect you as they should—peace of mind in a click.

## Overview

The Fluke ST120 GFCI Socket Tester is a compact, rugged tool designed for quick and reliable outlet testing. Featuring bright LEDs for easy miswire identification and an integrated GFCI test button, it ensures your electrical outlets are wired correctly and your GFCI protection functions properly. Ideal for electricians and home pros, it combines trusted Fluke quality with user-friendly diagnostics to save time and enhance safety on every job.

## Description

The ST120 socket tester with a GFCI test button from Fluke is a great introductory socket tester for home electricians and anyone wanting to quickly and easily test outlets. The bright, easy to read LEDs provide you with the information you need to easily recognize a miswired outlet. Plus, using the included table, you know how the outlet is miswired so you can repair it. The integrated GFCI test button gives you peace of mind by being able to individually check the GFCI trip function at your outlets, ensuring that they work as intended. The rugged yet compact design of the ST120 make it easy to carry with you to every job.

Review: An essential wiring safety check! - I love the elegant simplicity of this socket tester - plug it in and you get a light pattern that you can match up to the table on the front of the product and diagnose the health of your circuit. It also has a nice GFCI tester to see if it pops when it is supposed to. I think this device is a potential lifesaver. When I made my video (attached) I noticed that I was getting some blinking on the lights that indicated a possible intermittent ground. I popped open the box and found that the groundwire was a little loose despite a green light on the GFCI itself. In a few seconds, I was able to identify and fix a problem I didn't even know I had!
Review: Easy readability from across the room - I have an old electrical outlet tester I bought years ago but wanted one with a GFCI tester. My old one was best viewed standing directly over it when it was plugged into an outlet. This Fluke can be view from across the room with its LEDs positioned outward. It also will test your GFCI outlet, which can malfunction over time. This makes it easy to test both correct wiring and your GFCI function.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B3VC2W6X |
| Best Sellers Rank | #71,738 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #119 in Circuit Testers |
| Brand | Fluke |
| Color | yellow |
| Date First Available | June 26, 2022 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.89 ounces |
| Item dimensions L x W x H | 2.28 x 2.9 x 0.98 inches |
| Item model number | ST120 |
| Manufacturer | Fluke |
| Measurement Type | 'Volts', 'Inches' |
| Min. Operating Voltage | 110 Volts |
| Power Source | See Product Details |
| Product Dimensions | 2.28 x 2.9 x 0.98 inches |
| Specification Met | CE, UL |
| Style | SOCKET TESTER WITH LEDS AND GFCI TEST BUTTON |
| UPC | 195112033579 |

## Product Details

- **Brand:** Fluke
- **Color:** yellow
- **Item dimensions L x W x H:** 2.28 x 2.9 x 0.98 inches
- **Power Source:** See Product Details
- **Style:** SOCKET TESTER WITH LEDS AND GFCI TEST BUTTON

## Images

![Fluke ST120 GFCI Socket Tester Without Beeper - Image 1](https://m.media-amazon.com/images/I/81hERZs6wNL.jpg)

## Questions & Answers

**Q: How do you charge it? Battery operated?**
A: The ST120 is powered by the 120V receptacle that it's plugged into.

## Customer Reviews

### ⭐⭐⭐⭐⭐ An essential wiring safety check!
*by S***R on February 26, 2025*

I love the elegant simplicity of this socket tester - plug it in and you get a light pattern that you can match up to the table on the front of the product and diagnose the health of your circuit. It also has a nice GFCI tester to see if it pops when it is supposed to. I think this device is a potential lifesaver. When I made my video (attached) I noticed that I was getting some blinking on the lights that indicated a possible intermittent ground. I popped open the box and found that the groundwire was a little loose despite a green light on the GFCI itself. In a few seconds, I was able to identify and fix a problem I didn't even know I had!

### ⭐⭐⭐⭐⭐ Easy readability from across the room
*by K***N on October 15, 2025*

I have an old electrical outlet tester I bought years ago but wanted one with a GFCI tester. My old one was best viewed standing directly over it when it was plugged into an outlet. This Fluke can be view from across the room with its LEDs positioned outward. It also will test your GFCI outlet, which can malfunction over time. This makes it easy to test both correct wiring and your GFCI function.

### ⭐⭐⭐⭐⭐ Easy way to make sure electrical outlets are wired up correctly.
*by R***O on January 12, 2026*

Great gadget for testing wall outlets. Easy to use.

## Frequently Bought Together

- Fluke ST120 GFCI Socket Tester Without Beeper
- Fluke 1AC II VoltAlert Non-Contact Voltage Tester, Pocket-Sized, 90-1000V AC, Audible Beeper, 2 Year Warranty, CAT IV Rating, Packaging May Vary
- Fluke ST120+ GFCI Socket Tester with Audible Beeper

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-13*