{"product_id":"oyviny-3-in-1-trailer-plug-tester-4-5-pin-flat-7-pin-rv-light-tester-with-dual-sided-leds","title":"Oyviny 3-in-1 Trailer Plug Tester – 4\/5 Pin Flat \u0026 7 Pin RV Light Tester with Dual-Sided LEDs","description":"\u003cp\u003eThe Oyviny 3-in-1 Trailer Plug Tester is a compact, all-in-one tool designed for practical trailer wiring checks. It combines testing capabilities for 4-pin flat, 5-pin flat, and RV 7-pin blade connectors in a single, easy-to-use device. Its design emphasizes readability and quick diagnostics, making it a reliable addition to your roadside kit or shop setup. Important compatibility note: this tester does not work with vehicles equipped with lamp-out sensors, such as certain newer GMC, Chevrolet, BMW, VW, Audi, Mercedes-Benz, and Porsche models.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can test\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTail lights, brake lights, and turn signals to confirm basic operation and timing\u003c\/li\u003e\n  \u003cli\u003eReverse lights to verify proper function when backing up\u003c\/li\u003e\n  \u003cli\u003eTurn signal indicators to ensure proper sequencing and responsiveness\u003c\/li\u003e\n  \u003cli\u003eElectric trailer brakes for structural control signals and responsiveness\u003c\/li\u003e\n  \u003cli\u003e12V auxiliary power to confirm available power on the trailer circuit\u003c\/li\u003e\n  \u003cli\u003eOverall wiring integrity to help locate potential wiring issues quickly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReading the indicators\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-sided LEDs on both sides improve readability from multiple angles\u003c\/li\u003e\n  \u003cli\u003eEach function has its own LED, making it easier to identify which circuit may need attention\u003c\/li\u003e\n  \u003cli\u003eGreen illumination provides a clear visual cue for successful function checks on site\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDurable design and ease of use\u003c\/h2\u003e\n\u003cp\u003eConstructed from rugged ABS plastic with tin-plated copper terminals, the tester resists corrosion and provides stable conductivity. No batteries or extra wiring are required—simply plug in to test trailer circuits on trucks, boats, campers, caravans, and other towed configurations. The ergonomic design supports quick plugging and unplugging, helping you save time during roadside checks or maintenance sessions.\u003c\/p\u003e\n\n\u003cp\u003eNote: For vehicles equipped with lamp-out sensors, this tester may not function as expected. Always verify compatibility with your specific vehicle model before testing.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does the Oyviny 3-in-1 Trailer Plug Tester test?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It tests 4-pin flat, 5-pin flat, and 7-pin RV trailer connectors, verifying taillights, brake lights, turn signals, reverse lights, and 12V power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this tester compatible with lamp-out sensor vehicles?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not compatible with vehicles that have lamp-out sensors, including certain GMC, Chevrolet, BMW, VW, Audi, Mercedes, and Porsche models.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Oyviny","offers":[{"title":"Default Title","offer_id":47464031879342,"sku":"B0D1B9BBR7","price":67.04,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/6012\/9710\/files\/oviny-3in1-trailer-plug-tester-front-view.jpg?v=1770289676","url":"https:\/\/handyskook.ca\/products\/oyviny-3-in-1-trailer-plug-tester-4-5-pin-flat-7-pin-rv-light-tester-with-dual-sided-leds","provider":"HandySkook","version":"1.0","type":"link"}