--- product_id: 278688210 title: "CT20 Remote and Local Continuity Tester, green" brand: "extech" price: "1204 kr" currency: NOK in_stock: true category: "Extech" url: https://www.desertcart.no/products/278688210-ct20-remote-and-local-continuity-tester-green store_origin: NO region: Norway --- # Compact 5.6 cm size Battery powered, low consumption Bi-color LED for polarity & continuity CT20 Remote and Local Continuity Tester, green **Brand:** extech **Price:** 1204 kr **Availability:** ✅ In Stock ## Summary > 🔌 Test smarter, not harder—stay connected with Extech CT20! ## Quick Answers - **What is this?** CT20 Remote and Local Continuity Tester, green by extech - **How much does it cost?** 1204 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/278688210-ct20-remote-and-local-continuity-tester-green) ## Best For - extech enthusiasts ## Why This Product - Trusted extech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged & Reliable:** Built tough with CE certification and high-temp tolerance for any job site. - • **One-Person Wire Testing:** Streamline your workflow with single-user operation—no extra hands needed. - • **Modular RJ11 Connectivity:** Plug-and-play transmitter cables for seamless phone line testing. - • **Pocket-Sized & Lightweight:** Clip it, hang it, carry it—designed for on-the-go pros. - • **Remote Continuity Detection:** Identify cable continuity remotely with a flashing dual-color LED probe. ## Overview The Extech CT20 is a compact, battery-powered continuity tester featuring remote and local testing capabilities. Its bi-color LED probe enables quick polarity and continuity identification, while its lightweight, pocket-sized design ensures easy portability. Ideal for professionals needing efficient, one-person wire and cable diagnostics with modular RJ11 connectivity and rugged durability. ## Description Continuity tester, length 3.6 in. , Function checks local continuity, remote continuity, and remote polarity, with power off, features pocket-sized, light weight, low power consumption, high quality rugged design, dual color (red/Green) remote probe for polarity identification, battery type 9v, includes 9 in. Test leads, remote dual color led probe with 11 in. Test leads, 9v battery, carrying case, and instructions. ## Features - One person operation for wire and cable testing - Transmitter with output cables terminated in modular RJ11 phone connector - Remote continuity with the use of the remote probe - Flashing remote probe two lead, bi color (red/green) LED probe allows a single user to identify up to three wires or cables at a time - Lightweight and pocket sized, clips on and hangs from the cable(s) under test without falling off ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000LYTTRK | | ASIN | B000LYTTRK | | Batteries | 1 AA batteries required. (included) | | Best Sellers Rank | #136,681 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #615 in Multi Testers | | Brand Name | Extech | | Color | green | | Customer Reviews | 4.5 4.5 out of 5 stars (1,949) | | Customer reviews | 4.5 4.5 out of 5 stars (1,949) | | Date First Available | 14 August 2012 | | Global Trade Identification Number | 00793950000205 | | Included Components | Product & Instructions Guide | | Is Discontinued By Manufacturer | No | | Item Dimensions | 5.6 x 2.9 x 9.1 centimeters | | Item Weight | 0.1 Kilograms | | Item model number | CT20 | | Manufacturer | Extech | | Manufacturer | Extech | | Measurement Type | Ohmmeter | | Minimum Operating Voltage | 9 Volts | | Model | CT20 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | CT20 | | Power Source | Battery Powered | | Product Dimensions | 5.59 x 2.9 x 9.15 cm; 100 g | | Specification Met | CE | | Style Name | Standard | | UPC | 013161042406 793950000205 | | Unit Count | 1 Count | | Upper Temperature Rating | 149 Degrees Fahrenheit | ## Product Details - **Brand:** Extech - **Colour:** green - **Item weight:** 0.1 Kilograms - **Power source:** Battery Powered - **Style:** Standard ## Images ![CT20 Remote and Local Continuity Tester, green - Image 1](https://m.media-amazon.com/images/I/61n4wMm7trL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Can this device be used to test the continuity of a single conductor wire instead of a conductor pair?** A: I wondered about that too so I asked my son in law he's an electrician according to him you can't do it remotely but it can be done without the remote option as long as you can get to both ends of the single wire which makes this device useless in most cases because most of the wires I would want to remotely test are single wire **Q: how many feet can be tested at one time ?** A: Not sure what your asking about how many feet? It is for finding continuous flow in wiring if your not sure which wire goes where. This is a video I used to help me to figure out a 4 way switch setup. http://www.thisoldhouse.com/toh/tv/ask-toh/video/0,,20785338,00.htmlHope it helps. **Q: Hooking tester in panel box is a probl locating grnd and neg. Can you attach rem to grounding bar to test for neg and grounding wire continuity?** A: You can test everything you want as long as the object that you want to test is de-energized **Q: do the units require any kind of recalibration or servicing to ensure it is still working correctly** A: No, none that I know of. It works fine and comes with instructions. It saves a lot of time and trouble, especially if you are working alone. ## Frequently Bought Together - Extech CT20 Remote and Local Continuity Tester - Southwire Tester; Continuity PRO 40040S - Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411 --- ## 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.no/products/278688210-ct20-remote-and-local-continuity-tester-green](https://www.desertcart.no/products/278688210-ct20-remote-and-local-continuity-tester-green) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-29*