--- product_id: 593516225 title: "Fluke ST120+ GFCI Socket Tester with Audible Beeper" brand: "fluke" price: "₩145502" currency: KRW in_stock: true reviews_count: 5 category: "Fluke" url: https://www.desertcart.kr/products/593516225-fluke-st120-gfci-socket-tester-with-audible-beeper store_origin: KR region: South Korea --- # Bright LEDs for instant wiring status Audible beeper for quick breaker ID Compact rugged design for every job Fluke ST120+ GFCI Socket Tester with Audible Beeper **Brand:** fluke **Price:** ₩145502 **Availability:** ✅ In Stock ## Summary > ⚡ Test smarter, work faster, stay safe with Fluke ST120+! ## Quick Answers - **What is this?** Fluke ST120+ GFCI Socket Tester with Audible Beeper by fluke - **How much does it cost?** ₩145502 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/593516225-fluke-st120-gfci-socket-tester-with-audible-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 - • **Trusted by Pros:** Fluke’s ST120+ ranks top 10 in circuit testers with 4.8-star reviews—join thousands of experts who rely on it daily. - • **Rugged & Portable:** Compact, durable design built to withstand tough jobsite conditions and fit easily in your toolkit. - • **Audible Breaker Finder:** Switch on the beeper and instantly locate the correct circuit breaker without multiple trips—efficiency amplified. - • **Instant Wiring Clarity:** Bright LEDs provide fast, foolproof identification of miswired outlets, saving you time on every inspection. - • **Built-in GFCI Verification:** Integrated test button ensures GFCI outlets are functioning perfectly—your safety check in one click. ## Overview The Fluke ST120+ GFCI Socket Tester combines bright LED indicators, an integrated GFCI test button, and a unique audible beeper to streamline outlet wiring verification and breaker identification. Its compact, rugged design makes it an essential, reliable tool for electricians, inspectors, and technicians aiming for precision and efficiency on every job. ## Description "The ST120+ Socket Tester with a GFCI test button and beeper from Fluke is the perfect tester for electricians and electrical inspectors, home inspectors and technicians who need to verify the correct wiring of outlets. The bright, easy to see LEDs let you know if an outlet is miswired and the integrated GFCI test button gives you peace of mind by allowing you to verify the proper operation of GFCI equipped outlets. The addition of a switchable beeper makes the ST120+ even more capable. In addition to providing an additional level of safety by beeping whenever voltage is present – even with a miswired outlet – the beeper also helps you save time identifying circuit breakers. Just plug in the tester into an outlet and make sure the beeper is switched on. Then, when you flip the corresponding circuit breaker for that outlet, the beeper will turn on or off, letting you know that you found the right breaker. These features packed into the compact yet rugged design of the ST120+ make this the perfect tester to take to every job." ## 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 | B0B3VCZ4XK | | Best Sellers Rank | #140,804 in Home Improvement ( See Top 100 in Home Improvement ) #21 in Circuit Testers | | Brand | Fluke | | Brand Name | Fluke | | Colour | Yellow | | Country of Origin | USA | | Customer Reviews | 4.8 out of 5 stars 1,627 Reviews | | Included Components | Outlet Tester | | Item Dimensions | 5.8 x 7.4 x 2.5 Centimeters | | Item Weight | 0.07 Kilograms | | Item dimensions L x W x H | 5.8 x 7.4 x 2.5 Centimeters | | Manufacturer | Fluke | | Model Number | ST120+ | | Part Number | ST120+ | | Power Source | Corded Electric | | Power Source Type | Corded Electric | | Specification Met | Cat Iii 300 V | | Style | Modern | | Style Name | Modern | | UPC | 195112033586 | ## Product Details - **Brand:** Fluke - **Power Source:** Corded Electric - **Style:** Modern - **Colour:** Yellow - **Item Weight:** 0.07 Kilograms ## Images ![Fluke ST120+ GFCI Socket Tester with Audible Beeper - Image 1](https://m.media-amazon.com/images/I/816n049-GKL.jpg) ![Fluke ST120+ GFCI Socket Tester with Audible Beeper - Image 2](https://m.media-amazon.com/images/I/617Sir9ZjWL.jpg) ![Fluke ST120+ GFCI Socket Tester with Audible Beeper - Image 3](https://m.media-amazon.com/images/I/51yHVUL5CNL.jpg) ![Fluke ST120+ GFCI Socket Tester with Audible Beeper - Image 4](https://m.media-amazon.com/images/I/611vqTzKG8L.jpg) ![Fluke ST120+ GFCI Socket Tester with Audible Beeper - Image 5](https://m.media-amazon.com/images/I/61VZuSkycpL.jpg) ## Questions & Answers **Q: Does this work to simply test if an outlet is working ( I'm not an electrician, so in other words if it's "hot" ) ? Even not talking about gcfi.** A: Yes, this outlet tester will verify that there is current flowing in the socket ("live"), but importantly, it will tell you if the socket is wired correctly. Sometimes electricians or "DIYs" wire receptacles incorrectly, putting the neutral wire to the hot terminal and the hot wire to the neutral terminal, which will work but which will make some electrical devices unsafe to use. This will tell you immediately if it is wired correctly, it primary function. **Q: Can I attach a 3 prong adapter to my 2 prong outlet then test with this device?** A: The whole point is to test all 3 conductors to assure they are in the right orientation. But, I bit and tried it out of curiosity. Drum roll please - Open Ground! But you probly knew that. **Q: Does this fluke st120+ gfci socket tester come with a standard warranty, e.g. 12 or 24 months?** A: This model has a 2 year warranty. **Q: is there a case** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***Y on 12 July 2025* ### ⭐⭐⭐⭐⭐ Review *by O***X on 1 March 2026* ### ⭐⭐⭐⭐⭐ Review *by G***S on 25 April 2026* ## Frequently Bought Together - Fluke ST120+ GFCI Socket Tester with Audible 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 - RLSOCO Carrying Case for Fluke ST120+/ST120 GFCI Socket Tester (Case Only) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/593516225-fluke-st120-gfci-socket-tester-with-audible-beeper](https://www.desertcart.kr/products/593516225-fluke-st120-gfci-socket-tester-with-audible-beeper) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-13*