--- product_id: 762024375 title: "KleinTools RT210 Outlet GFCI Tester" brand: "klein tools" price: "£0.97" currency: GBP in_stock: false reviews_count: 1 url: https://www.desertcart.co.uk/products/762024375-kleintools-rt210-outlet-gfci-tester store_origin: GB region: United Kingdom --- # Detects wiring faults instantly Drop-tested to 2m durability UL & CSA certified safety KleinTools RT210 Outlet GFCI Tester **Brand:** klein tools **Price:** £0.97 **Availability:** ❌ Out of Stock ## Summary > ⚡ Wire it right, every time — don’t get left in the dark! ## Quick Answers - **What is this?** KleinTools RT210 Outlet GFCI Tester by klein tools - **How much does it cost?** £0.97 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/762024375-kleintools-rt210-outlet-gfci-tester) ## Best For - klein tools enthusiasts ## Why This Product - Trusted klein tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wide Operating Range:** Reliable performance from 32°F to 104°F (0°C to 40°C) ensures accuracy in diverse climates. - • **Compact & Lightweight:** At just 53.8g and pocket-sized, it’s the perfect tool to carry for every electrical inspection. - • **Rugged Drop Resistance:** Engineered to survive 6.6 ft (2m) drops, built tough for demanding jobsite environments. - • **Instant Wiring Diagnostics:** Light sequence reveals correct or faulty wiring in seconds, eliminating guesswork on the job. - • **Certified Professional Grade:** Meets UL Std 1436 and CSA Std C22.2 #160 for trusted, industry-standard safety compliance. ## Overview The Klein Tools RT210 Outlet GFCI Tester is a compact, professional-grade device designed to quickly identify common wiring issues in standard 110/125V outlets. Certified to UL and CSA safety standards, it features a clear light sequence for instant diagnostics, operates reliably across a broad temperature range, and withstands drops up to 2 meters, making it an essential, durable tool for electricians and serious DIYers alike. ## Description Product Description Klein Tools RT110 receptacle tester detects the most common wiring problems with standard receptacles. Display Conditions: Correct Wiring, Open Round, Reverse Power Outlet, Open Hot, Open Neutral, Hot/Ground Reverse Conditions not displayed: Grounding quality, multiple heat wires, defective combination, ground conductor and ground conductor reverse. For over 160 years, Klein Tools has been manufacturing premium quality professional grade hand tools that provide the performance, durability and precision you need to get the job done right. Our family of engineers, workers, and artisans continue to put 6 generations of expertise into every tool by using only the highest quality materials, using superior craftsmanship and keeping the manufacturing as close to your home as possible. Klein is not just our name, but also our last name. We are a family owned and operated American business so you can expect to be here tomorrow tomorrow. Not only do Klein Tools make great products, but they also make great products that meet the demands of the professionals who use every day. Since 1857 Safety Warning Before operating the tester, please read, understand and follow all warnings and instructions. Always consult a qualified electrician to resolve wiring problems. Always wear approved eye protection ## Features - Light sequence indicates correct/wrong wiring - UL Std 1436 CSA Std C22.2 #160 Certified - Operating Temperature: 32°F - 104°F (0°C - 40°C) - Designed to withstand 6.6 feet (2m) drops - Nominal Voltage: 110/125V AC at 50/60Hz with 3-wire outlets - Designed to detect the most common wiring problems with standard outlets ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | KLEIN TOOLS | | Model Number | RT110 | | Product Dimensions | 13.97 x 8.89 x 4.57 cm; 53.86 g | | Color | Black | | Name List for Name Plates | Standard | | Material | plastic | | Wallpaper Pattern | tester | | Power Source | AC | | Included Components | RT110 | | Are Batteries Included | No | | Item Weight | 53.8 g | ## Product Details - **Brand:** KLEIN TOOLS - **Power Source:** AC - **Style:** Standard - **Color:** Black - **Item Weight:** 1.9 Ounces ## Images ![KleinTools RT210 Outlet GFCI Tester - Image 1](https://m.media-amazon.com/images/I/41qnzgdirPL.jpg) ![KleinTools RT210 Outlet GFCI Tester - Image 2](https://m.media-amazon.com/images/I/61RJQA00JWL.jpg) ![KleinTools RT210 Outlet GFCI Tester - Image 3](https://m.media-amazon.com/images/I/51qtj1xVxOL.jpg) ![KleinTools RT210 Outlet GFCI Tester - Image 4](https://m.media-amazon.com/images/I/51-pXUj2CmL.jpg) ![KleinTools RT210 Outlet GFCI Tester - Image 5](https://m.media-amazon.com/images/I/519Ubl9qBHL.jpg) ## Questions & Answers **Q: With a schotko adapter would this work to test the ground overseas at 220v?** A: With and adapter maybe not sure I’m not an electrician **Q: If I use this how do I tell if the outlet has no ground? Theres no indicator on the device its self that says no ground.** A: Because the ground light on this device will not be lit up. The ground light will only light up on this device if the outlet is properly grounded. **Q: What would light up if there is no ground ?** A: The middle light only **Q: Will this show a short in the wiring?** A: a short? No this is a device to show if you have a duplex receptacle wired correctly. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does what it says. Simple, efficient *by W***R on September 20, 2025* Does what it says. Simple, efficient ## Frequently Bought Together - Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets - Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles - Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to 1000V AC, Audible and Flashing LED Alarms, Pocket Clip --- ## 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.co.uk/products/762024375-kleintools-rt210-outlet-gfci-tester](https://www.desertcart.co.uk/products/762024375-kleintools-rt210-outlet-gfci-tester) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*