--- product_id: 565689509 title: "Trailer Light Tester, 7 Pin Trailer Plug Testerwith Red LED, 7 Way Trailer Plug Testerfor Diagnosing and Fixing Trailer Socket Circuit Problems" brand: "wushixan" price: "SAR 52" currency: SAR in_stock: true reviews_count: 8 category: "Wushixan" url: https://www.desertcart.com.sa/products/565689509-trailer-light-tester-7-pin-trailer-plug-testerwith-red-led store_origin: SA region: Saudi Arabia --- # High-quality brass pins for superior conductivity 7 LED indicators for instant circuit status Weatherproof ABS plastic shell for durability Trailer Light Tester, 7 Pin Trailer Plug Testerwith Red LED, 7 Way Trailer Plug Testerfor Diagnosing and Fixing Trailer Socket Circuit Problems **Brand:** wushixan **Price:** SAR 52 **Availability:** ✅ In Stock ## Summary > 🔧 Don’t get left in the dark—test your trailer lights like a pro! ## Quick Answers - **What is this?** Trailer Light Tester, 7 Pin Trailer Plug Testerwith Red LED, 7 Way Trailer Plug Testerfor Diagnosing and Fixing Trailer Socket Circuit Problems by wushixan - **How much does it cost?** SAR 52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/565689509-trailer-light-tester-7-pin-trailer-plug-testerwith-red-led) ## Best For - wushixan enthusiasts ## Why This Product - Trusted wushixan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** No complicated setup—just connect, power on your lights, and read the LEDs for quick troubleshooting. - • **Instant Circuit Diagnosis:** Bright red LEDs clearly identify tail, brake, reverse, and turn signal lights in seconds. - • **Rugged Weatherproof Design:** Durable ABS plastic and copper build resists corrosion and impact for long-lasting reliability. - • **Precision Electrical Testing:** High-quality brass pins ensure stable, safe connections and accurate circuit readings every time. - • **Universal 7-Way Compatibility:** Fits all standard 7-pin trailer plugs, making it your go-to tester for any trailer socket. ## Overview The WUSHIXAN 7 Pin Trailer Light Tester is a professional-grade diagnostic tool designed to quickly identify faults in trailer lighting circuits. Featuring a rugged, weather-resistant ABS plastic shell and high-conductivity brass pins, it supports all standard 7-way trailer plugs. With six bright, clearly labeled red LED indicators, it offers instant visual feedback on tail, brake, reverse, turn signals, and auxiliary power circuits. Its plug-and-play design makes it an essential, easy-to-use tool for any trailer owner or professional mechanic. ## Description Buy WUSHIXAN Trailer Light Tester, 7 Pin Trailer Plug Testerwith Red LED, 7 Way Trailer Plug Testerfor Diagnosing and Fixing Trailer Socket Circuit Problems: Connectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Good tester - Easy to operate and change connector types. Review: Works but some vehicle turn signals don't show up. - Doesn't detect 2002 avalanche turn signal, but detects everything else, had to have someone press the brake and then left and right lit up. Weird gm wiring. The leds are easy to see. ## Features - 【HIGH QUALITY】Trailer Tester is Made of High-quality ABS Plastic and Copper, with a Black Matte Exterior Shell for Optimal Weather, Corrosion and Impact Resistance for Long-term Use. - 【MULTI-FUNCTION】7 Pin Trailer Tester can Test Tail Lights, Brake Lights, Reverse Lights, Turn Signals, Brakes and Auxiliary Power. - 【COMPATIBILITY】Trailer Wiring Tester is Compatible with Standard 7-way Blade Trailer Outlets. 7 Pin Trailer Plug Size: 5.2x2.96x1.63 Inches (13x7.5x4.1CM). - 【SUPERIOR CONDUCTIVITY】 7 Way Trailer Plug Uses High Quality Brass Pins to Ensure a Safe and Stable Electrical Signal Connection between the Plug and the Trailer. The Trailer Light Adapter Features 6 Bright LED Indicators. Each Indicator is Clearly and Distinctly Labeled, Allowing you to Quickly Identify Working and Faulty Circuits at a Glance. - 【EASY TO USE】 Plug 7 Prong Trailer Plug into the Trailer or Adapter, Turn on the Lights, and Check the Easy-to-read LEDs, Plug and Play. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CGQX1P3N | | Best Sellers Rank | #2,695 in Automotive ( See Top 100 in Automotive ) #3 in Trailer Connectors | | Brand | WUSHIXAN | | Brand Name | WUSHIXAN | | Color | black | | Compatible Devices | Devices with standard 7-way blade trailer outlets | | Customer Reviews | 4.4 out of 5 stars 627 Reviews | | Manufacturer | WUSHIXAN | | Measurement Type | Ohmmeter" or "Voltmeter" or "Ammeter | | Part Number | DTM8025 | | Power Source | Battery Powered | | UPC | 783798121446 | | Unit Count | 1 Count | ## Product Details - **Brand:** WUSHIXAN - **Color:** black - **Measurement Type:** Ohmmeter" or "Voltmeter" or "Ammeter - **Power Source:** Battery Powered - **Unit Count:** 1 Count ## Images ![Trailer Light Tester, 7 Pin Trailer Plug Testerwith Red LED, 7 Way Trailer Plug Testerfor Diagnosing and Fixing Trailer Socket Circuit Problems - Image 1](https://m.media-amazon.com/images/I/61qHNNNEtsL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good tester *by G***Y on August 7, 2026* Easy to operate and change connector types. ### ⭐⭐⭐⭐⭐ Works but some vehicle turn signals don't show up. *by A***R on June 12, 2026* Doesn't detect 2002 avalanche turn signal, but detects everything else, had to have someone press the brake and then left and right lit up. Weird gm wiring. The leds are easy to see. ### ⭐⭐⭐⭐⭐ works as it should *by R***Z on July 7, 2026* work as it should , fast delivery --- ## 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.com.sa/products/565689509-trailer-light-tester-7-pin-trailer-plug-testerwith-red-led](https://www.desertcart.com.sa/products/565689509-trailer-light-tester-7-pin-trailer-plug-testerwith-red-led) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-08-27*