--- product_id: 566823624 title: "Southwire TESTER, CONTINUITY PRO 40040S" brand: "southwire" price: "268890₫" currency: VND in_stock: false reviews_count: 5 url: https://www.desertcart.vn/products/566823624-southwire-tester-continuity-pro-40040s store_origin: VN region: Vietnam --- # LED Indicator 9V Power Source Easy Connectivity Southwire TESTER, CONTINUITY PRO 40040S **Brand:** southwire **Price:** 268890₫ **Availability:** ❌ Out of Stock ## Summary > 🔧 Get Connected, Stay Efficient! ## Quick Answers - **What is this?** Southwire TESTER, CONTINUITY PRO 40040S by southwire - **How much does it cost?** 268890₫ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/566823624-southwire-tester-continuity-pro-40040s) ## Best For - southwire enthusiasts ## Why This Product - Trusted southwire brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🔊 Loud Alert System:** Bright LEDs and pulsating beeper ensure you never miss a signal. - • **📏 Compact & Lightweight:** Weighs only 191g, perfect for on-the-go professionals. - • **📡 Remote Tracing Capability:** Includes detachable remote for easy cable run tracing. - • **🌍 International Compatibility:** Designed to meet diverse global standards. - • **🔍 Effortless Continuity Testing:** Simply press ON and connect leads for instant results. ## Overview The Southwire TESTER, CONTINUITY PRO 40040S is a compact and efficient tool designed for professionals needing reliable continuity testing on wires and cables. With its user-friendly interface, detachable remote for tracing, and bright LED indicators, this tester ensures you can work smarter, not harder. ## Description Southwire 40040S Pro continuity tester with built-in remote provides a simple way of checking continuity on wire and cables. Bright leds and loud pulsating beeper. Detachable remote indicator can be used to trace multiple cable runs Review: Excelente calidad - Funciona perfectamente. Review: Easy to use, compact and easy to carry, reliable - The Southwire Tester Continuity PRO 40040S is an outstanding tool for anyone needing a reliable and efficient continuity tester. From the moment I started using it, I was impressed by its accuracy and ease of use. The build quality is excellent, with a robust design that feels durable and long-lasting. The tester provides clear and quick readings, making it incredibly easy to diagnose continuity issues in various electrical circuits. The audible alert feature is particularly helpful, allowing me to focus on the task without constantly watching the display. One of the standout features is its versatility. Whether I'm working on wiring in my home, troubleshooting appliances, or handling automotive electrical systems, the Continuity PRO 40040S performs flawlessly. The compact size also makes it convenient to carry around and use in tight spaces. Overall, the Southwire Tester Continuity PRO 40040S has exceeded my expectations. It's an essential tool for both professional electricians and DIY enthusiasts, offering reliability, precision, and ease of use. Highly recommended for anyone needing a top-quality continuity tester! ## Features - EFFICIENT FUNCTIONALITY: Provides a simple way of checking continuity on wire and cables - EASY TO USE: Simply press the ON button and connect the leads. Bright flashing LEDs and loud pulsating beeper provide a positive indication of continuity. - TRACING CABLE RUNS: A detachable remote indicator is included for tracing cable runs. The LEDs on the test and the remote will glow green if there is an electrical path. - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01ERZTIOM | | Brand | Southwire | | Colour | Green | | Customer Reviews | 4.4 out of 5 stars 321 Reviews | | Global Trade Identification Number | 00032886958397 | | Included Components | Tools & Accessories | | Item Dimensions | 25 x 25 x 25 millimetres | | Item Type Name | TESTER, CONTINUITY PRO 40040S | | Item Weight | 0.42 Pounds | | Item dimensions L x W x H | 25 x 25 x 25 millimetres | | Item weight | 0.42 Pounds | | Manufacturer | Southwire | | Manufacturer Part Number | 40040S | | Minimum Operating Voltage | 9 Volts | | Model Number | 40040S | | Power Source | 9V 1 | | Power source | 9V 1 | | Style | Remote | | Style Name | Remote | | UPC | 032886958397 | | Unit Count | 1.0 count | | Upper Temperature Rating | 140 Degrees Fahrenheit | ## Product Details - **Brand:** Southwire - **Color:** Remote - **Item Weight:** 0.42 Pounds - **Power Source:** 9v 1 - **Style:** Remote ## Images ![Southwire TESTER, CONTINUITY PRO 40040S - Image 1](https://m.media-amazon.com/images/I/51vU5mpzDJL.jpg) ![Southwire TESTER, CONTINUITY PRO 40040S - Image 2](https://m.media-amazon.com/images/I/91nRolCESjL.jpg) ![Southwire TESTER, CONTINUITY PRO 40040S - Image 3](https://m.media-amazon.com/images/I/81WISDFDdSL.jpg) ![Southwire TESTER, CONTINUITY PRO 40040S - Image 4](https://m.media-amazon.com/images/I/81AqMOaN6HL.jpg) ![Southwire TESTER, CONTINUITY PRO 40040S - Image 5](https://m.media-amazon.com/images/I/91BoX8oL0pL.jpg) ## Questions & Answers **Q: Does the power have to be on in the circuit being tested for this tester to function?** A: No, DO NOT use this on a live circuit! This is a continuity tester! You are looking for a break in the wire. If it doesnt light up, one of two things happened. 1. One of the wires is broken, on the wires you are testing and the wire or cable needs to be replaced. 2. The unit is defective and returned for replacement. Check battery inside to see if its good. My 1st one was defective and I had to replace it. **Q: How to I test continuity for single long distance cable?** A: ?? The continuity Pro sends a voltage, from the 9V battery in the main part, to the remote or alone to itself down 2 conductors. When the used with the remote, it also detects polarity. So, you always need 2 conductors with the remote, could be a pair of wires, one wire and a conduit or a long external wire you run separately. **Q: whats up with the scanty cable?** A: There's 2 small test leads. A known good and known bad. That way you can check to make sure the tester can accurately detect a good and bad cable **Q: will this test continuity without running wires to each end of the circuit? Like plug one end at source one end at receive and read that way** A: Download the operating manual PDF at http://www.southwiretools.com/tools/tools/40040S for circuit continuity and polarity testing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excelente calidad *by C***N on 24 April 2019* Funciona perfectamente. ### ⭐⭐⭐⭐⭐ Easy to use, compact and easy to carry, reliable *by S***. on 10 June 2024* The Southwire Tester Continuity PRO 40040S is an outstanding tool for anyone needing a reliable and efficient continuity tester. From the moment I started using it, I was impressed by its accuracy and ease of use. The build quality is excellent, with a robust design that feels durable and long-lasting. The tester provides clear and quick readings, making it incredibly easy to diagnose continuity issues in various electrical circuits. The audible alert feature is particularly helpful, allowing me to focus on the task without constantly watching the display. One of the standout features is its versatility. Whether I'm working on wiring in my home, troubleshooting appliances, or handling automotive electrical systems, the Continuity PRO 40040S performs flawlessly. The compact size also makes it convenient to carry around and use in tight spaces. Overall, the Southwire Tester Continuity PRO 40040S has exceeded my expectations. It's an essential tool for both professional electricians and DIY enthusiasts, offering reliability, precision, and ease of use. Highly recommended for anyone needing a top-quality continuity tester! ### ⭐⭐⭐⭐⭐ Excellent product at a budget price! *by T***A on 28 April 2019* Works great! Works perfectly as described. Good price too! Did a big Cat6 job and got me out of a jam. ## Frequently Bought Together - Southwire Tester; Continuity PRO 40040S - Extech CT20 Remote and Local Continuity Tester , green,2 - Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester and Voltage Tester with Integrated GFCI Outlet Tester --- ## 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.vn/products/566823624-southwire-tester-continuity-pro-40040s](https://www.desertcart.vn/products/566823624-southwire-tester-continuity-pro-40040s) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-20*