--- product_id: 2175252 title: "CT20 Remote and Local Continuity Tester with Remote Probe" brand: "extech" price: "¥15883" currency: JPY in_stock: true category: "Extech" url: https://www.desertcart.jp/products/2175252-ct20-remote-and-local-continuity-tester-with-remote-probe store_origin: JP region: Japan --- # Bright LED indicators for clarity Tests cables up to 10,000 ft 85dB loud audible beeper CT20 Remote and Local Continuity Tester with Remote Probe **Brand:** extech **Price:** ¥15883 **Availability:** ✅ In Stock ## Summary > 🔌 Master your wiring game with the CT20—where precision meets solo power! ## Quick Answers - **What is this?** CT20 Remote and Local Continuity Tester with Remote Probe by extech - **How much does it cost?** ¥15883 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/2175252-ct20-remote-and-local-continuity-tester-with-remote-probe) ## 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 - • **Compact Powerhouse:** Lightweight and portable design fits in your toolkit without weighing you down. - • **Solo Cable Mastery:** Detachable remote probe enables one-person operation across long distances—no assistant needed. - • **Built for the Field:** Rugged housing and professional alligator clips ensure durability and secure connections on-site. - • **Precision in Every Signal:** Dual LED and audible alerts cut through noise for instant, reliable continuity confirmation. - • **Effortless Long-Range Testing:** Perfect for tracing wires across rooms, floors, or entire buildings—save time on complex jobs. ## Overview The Extech CT20 Remote and Local Continuity Tester is a professional-grade tool designed for electricians and technicians to quickly and accurately test cable continuity up to 10,000 feet. Featuring a detachable remote probe for single-user operation, bright LED and loud audible indicators, and a rugged build, it streamlines troubleshooting across large installations, automotive circuits, and home wiring projects. Compact and battery-powered, the CT20 delivers dependable performance in noisy, demanding environments. ## Description Product Description The Extech CT20 Remote & Local Continuity Tester is built for technicians who need fast, reliable cable tracing without unnecessary complications. Designed with a remote probe that lets you test long cable runs across rooms, floors, or large installations, the CT20 makes it easy to identify wiring faults without requiring an extra set of hands. This professional-grade tool offers both audible tones and bright LED indicators, providing immediate confirmation of continuity even in challenging work environments. Whether you're working on telecom lines, HVAC control wiring, security systems, automotive circuits, or low-voltage electrical installations, the CT20 delivers the accuracy and efficiency needed to diagnose issues quickly. Lightweight, portable, and rugged enough for field conditions, the Extech CT20 is the go-to continuity tester for electricians, installers, and maintenance technicians who demand dependable performance and streamlined operation. From the Manufacturer An electronic tool for electricians, alarm, cable installers and others who routinely need to check circuits for continuity and also identify cables and wires. It allows a single user to quickly identify and label two wires even when the wire ends are located in different rooms.85dB beeper. Tests wire lengths up to 10,000-Foot (3,000m) 26 gauge minimum. CE approved. Complete with Continuity Tester, Remote Probe with Bi-Color LED, 9V battery, and carrying case. ## Features - RELIABLE CONTINUITY TESTING: Quickly check for shorts and opens in cables and wires. Perfect for electricians and DIYers working on home wiring, automotive circuits, or remote cables. - ONE-PERSON OPERATION: Features a unique detachable Remote Probe that allows a single user to identify and label long-distance wire runs (up to 10,000ft/3,000m) without needing an assistant. - LED & AUDIBLE INDICATORS: Bright flashing LED and loud pulsating beeper provide clear signals even in noisy environments. Includes a "Local" and "Remote" mode to ensure total circuit accuracy. - PERFECT FOR LONG-DISTANCE CABLE RUNS: Ideal for checking wiring across rooms, hallways, or entire buildings with the included remote probe, saving time on large-scale installations and maintenance tasks. - HEAVY-DUTY DESIGN: Built for the field with a rugged housing and professional-grade alligator clips for secure connections during testing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000LYTTRK | | Best Sellers Rank | #198,896 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #287 in Multi Testers | | Brand Name | Extech | | Color | green | | Customer Reviews | 4.5 4.5 out of 5 stars (2,000) | | Global Trade Identification Number | 00793950000205 | | Included Components | Product & Instructions Guide | | Item Dimensions | 2.2 x 1.14 x 3.6 inches | | Item Weight | 0.1 kg | | Manufacturer | Extech | | Measurement Type | Ohmmeter | | Model | CT20 | | Number of Items | 1 | | Part Number | CT20 | | Power Source | Battery Powered | | Style Name | CT20 | | UPC | 013161042406 793950000205 | | Unit Count | 1 Count | | Upper Temperature Rating | 149 °F | | Warranty Description | 1 year | ## Product Details - **Brand:** Extech - **Color:** green - **Item Weight:** 0.1 kg - **Power Source:** Battery Powered - **Style:** CT20 ## Images ![CT20 Remote and Local Continuity Tester with Remote Probe - Image 1](https://m.media-amazon.com/images/I/61n4wMm7trL.jpg) ![CT20 Remote and Local Continuity Tester with Remote Probe - Image 2](https://m.media-amazon.com/images/I/51zSiCr8OfL.jpg) ![CT20 Remote and Local Continuity Tester with Remote Probe - Image 3](https://m.media-amazon.com/images/I/41NiMxYOQUL.jpg) ![CT20 Remote and Local Continuity Tester with Remote Probe - Image 4](https://m.media-amazon.com/images/I/41cxWFHejxL.jpg) ![CT20 Remote and Local Continuity Tester with Remote Probe - Image 5](https://m.media-amazon.com/images/I/41FiAshIWoL.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.jp/products/2175252-ct20-remote-and-local-continuity-tester-with-remote-probe](https://www.desertcart.jp/products/2175252-ct20-remote-and-local-continuity-tester-with-remote-probe) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-27*