--- product_id: 417200512 title: "Southwire Ncv Detector 100-600V Ac" brand: "southwire" price: "£58.14" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/417200512-southwire-ncv-detector-100-600v-ac store_origin: GB region: United Kingdom --- # Built-in flashlight convenience Audible AC voltage alert Auto power-off extends battery life Southwire Ncv Detector 100-600V Ac **Brand:** southwire **Price:** £58.14 **Availability:** ✅ In Stock ## Summary > ⚡ Stay powered, stay safe, stay ahead with Southwire NCV Detector! ## Quick Answers - **What is this?** Southwire Ncv Detector 100-600V Ac by southwire - **How much does it cost?** £58.14 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/417200512-southwire-ncv-detector-100-600v-ac) ## 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 - • **Safety First:** CAT IV 600V rating ensures top-tier protection for high-risk electrical environments. - • **Ready When You Are:** Green LED signals device readiness so you never miss a beat on the job. - • **Smart Battery Saver:** Auto power-off after 5 minutes keeps your device ready longer without wasting power. - • **Handy Flashlight Built-In:** Illuminate dark workspaces effortlessly with the integrated LED flashlight. - • **Instant Voltage Detection:** Hear and see AC voltage from 100 to 600V with clear audible and visual alerts. ## Overview The Southwire NCV Detector 100-600V AC is a compact, battery-powered voltage tester featuring audible and visual alerts for AC voltage detection between 100 and 600 volts. It includes a built-in flashlight for added utility, a green LED readiness indicator, and an auto power-off function to extend battery life. Certified with a CAT IV 600V safety rating, it ensures reliable and safe operation in demanding electrical environments. ## Description Make the Southwire 40116N AC non-contact voltage (NCV) pen tester a valuable addition to your tool bag. Use it whenever you perform electrical work to identify where voltage is present. Detects voltage in wires; light switches; circuit breakers; outlets and light fixtures. Press the On button and the detection tip glows green. Move the detector tip close to the electrical wire or device being tested. If voltage is detected; the detection tip will change from green to red and begin flashing. The NCV will also beep loudly. The 40116N can also be inserted directly into electrical outlets to verify operation. All Southwire non-contact voltage detectors come with a built-in focused LED flashlight so you can illuminate dark areas. Auto power off feature helps conserve battery power. As an added safety feature; the 40116N has a low-battery self test which periodically checks the condition of the batteries. If battery voltage becomes too low; the self-test circuit turn off the non-contact voltage detector until the batteries are replaced. The 40116N is UL listed. Not designed for use with Tamper Resistant (TR) outlets. ## Features - AUDIBLE AND VISUAL indication of AC voltage from 100 to 600V - INCREASED BATTERY LIFE with auto power off after 5 minutes of inactivity - READY FOR USE indicated by green LED - BUILT-IN flashlight for added convenience - CAT IV 600V safety rating ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Southwire | | Part Number | 59992040 | | Product Dimensions | 2.54 x 2.54 x 2.54 cm; 72.57 g | | Batteries | 2 AAA batteries required. (included) | | Item model number | 40116N | | Colour | Green,red | | Style | Voltage | | Material | Blend | | Power Source | Battery Powered | | Item Package Quantity | 1 | | Measurement System | US | | Display style | LED | | Certification | Cul Listed | | Included Components | 40116N, AAA Battery (2) | | Batteries included? | Yes | | Batteries Required? | Yes | | Battery Cell Type | Alkaline | | Item Weight | 72.6 g | ## Product Details - **Brand:** Southwire - **Power source:** Battery Powered - **Style:** Voltage - **Colour:** Green,red - **Item weight:** 73 g ## Images ![Southwire Ncv Detector 100-600V Ac - Image 1](https://m.media-amazon.com/images/I/41D1lFQNkpL.jpg) ## Questions & Answers **Q: How to replace batteries?** A: At the end of the name 'Southwire' is a small recess. Push in with pin or pencil point and pull the back of the tester out exposing the circuitry. Roll the tester over opposite the pocket clip and the two AAA batteries are exposed. **Q: Does this model make a different tone on nuetral and hot? Its hard to tell which review goes to which model.** A: The 40116N only produces one tone when it detects AC Voltage. **Q: Is this product made in the USA?** A: No…. It says in description - product origin China **Q: The tester I received is defective. I am either needing replaced or a refund. I have purchased this product before and am generally satisfied.** A: Souethwire and will be free of defects in material and workmanship (“Defects”) for 12 months following ship date, under normal use and regular service and maintenance ## Frequently Bought Together - Southwire Tools 40116N NCV Detector 100-600V AC - Southwire 40022S Receptacle Tester; Black - Southwire 40150N Advanced AC Non Contact Voltage Tester Pen; Dual Range 12-1000VAC/100-1000VAC; Non Contact Voltage Detector with LED Flashlight; 6' drop test rated; and IP67 waterproof; NCVT --- ## 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/417200512-southwire-ncv-detector-100-600v-ac](https://www.desertcart.co.uk/products/417200512-southwire-ncv-detector-100-600v-ac) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*