--- product_id: 647673771 title: "Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester with Extended Spring Wire & Probe for Car/RV/Vehicles" brand: "winamoo" price: "$37.56" currency: USD in_stock: true category: "Winamoo" url: https://www.desertcart.us/products/647673771-automotive-test-light-5-90v-digital-led-circuit-tester-voltage store_origin: US region: United States of America --- # 110-inch extended spring wire 5-90V voltage range Bidirectional polarity LED indicator Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester with Extended Spring Wire & Probe for Car/RV/Vehicles **Brand:** winamoo **Price:** $37.56 **Availability:** ✅ In Stock ## Summary > ⚡ Test Smarter, Not Harder — The Ultimate Digital Circuit Sidekick ## Quick Answers - **What is this?** Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester with Extended Spring Wire & Probe for Car/RV/Vehicles by winamoo - **How much does it cost?** $37.56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/647673771-automotive-test-light-5-90v-digital-led-circuit-tester-voltage) ## Best For - winamoo enthusiasts ## Why This Product - Trusted winamoo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Polarity Clarity:** Red and green bidirectional LEDs eliminate confusion—know positive or negative at a glance. - • **Precision Voltage Readout:** LED display with 0.1V accuracy ensures you never guess your circuit’s power. - • **Built for Safety & Durability:** Insulated grip and burn-resistant circuit board protect you and your device during every test. - • **Versatile Automotive Essential:** From headlights to fuses, quickly diagnose any vehicle electrical issue like a pro. - • **Extended Reach, One-Handed Control:** 110-inch spring wire plus large alligator clip for flexible, hassle-free testing in tight spots. ## Overview The WINAMOO Automotive Test Light is a professional-grade digital LED circuit tester designed for 5-90V automotive systems. Featuring a bright LED voltage display with 0.1V accuracy, a 110-inch flexible spring wire with a secure alligator clip, and bidirectional polarity indicators, it offers precise, safe, and efficient diagnostics for cars, trucks, and RVs. Its durable, insulated design and sharp probe make it an indispensable tool for automotive engineers and DIYers alike. ## Description WINAMOO Premium Automotive Digital Circuit Test Light with Voltage Display and Polarity Protection 5-90 V testing range, ideal for car, truck, and various vehicles' electrical circuits voltage testing, also for automotive battery, battery charging systems, ignition systems, which is a must have tool for any automotive engineer, electronic engineer or circuits DIY. BIDIRECTIONAL CIRCUIT TEST LED Indicator: Green for negative polarity and Red for positive polarity. The LED voltage display is a great addition to check fuses and battery voltage easily and quickly. Specifications and Features: Voltage: DC 5-90V(+_0.2V Accuracy) Resolution: 0.1V Package Contents: 1* Automotive Test Light with Voltage Display HEAVY DUTY DIAGNOSTIC TOOL 1. This circuit tester can be used to detect power, ground and find shorts and breaks in wires. 2. Quickly check automotive headlights, taillights, turn signal circuits, faulty sockets, connections, fuses, broken wires and more This circuit tester will save you time and speed up the job, perfect for automotive use. ## Features - 【LED Digital Display】: WINAMOO automotive circuit tester with LED digital voltage display for accurate volt readouts. Compared with LCD lights, LED lights are not affected by the brightness of light, so that be clearly read in daytime or dark areas. - 【Extended Spring Wire with Alligator Clip】: Maximum extended to 110 inch long enough spring wire increases flexibility and a wide measuring area when testing, anti-bending design of the tail wire makes no worry about bad contact of the line. Along with large size alligator clip for easy one-hand operation. - 【Bidirectional indicating light】: There is a bidirectional light emitting diode on the circuit board for polarity indication, red light indicates positive polarity & green light indicates negative polarity. You can attach the alligator clamp either to negative or positive ground, while using the probe to touch the other side. - 【Computer Save】: This premium car fuse tester has a built-in circuit board chip, safer and more durable than traditional test lights. Equipped with insulation protective cover, it provides better grip and insulation protection against electric shock. This circuit board with line protection function, which is safer and more burn-resistant. - 【Widely Use】: This auto electric tester pen is ideal for checking various vehicles electrical circuits. Sharp long probe is used to pierce wires and reach into narrow areas, quickly check automotive headlights, taillights, turn signal circuits, faulty sockets, connections, fuses, broken wires and more, suitable for your daily use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C54N67HR | | ASIN | B0C54N67HR | | Best Sellers Rank | #1,029 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Electrical System Tools | | Brand Name | WINAMOO | | Color | red | | Customer Reviews | 4.6 4.6 out of 5 stars (724) | | Customer reviews | 4.6 4.6 out of 5 stars (724) | | Date First Available | 13 May 2023 | | Included Components | As Shown | | Item Dimensions | 14 x 14 x 14 centimeters | | Item Weight | 200 Grams | | Item model number | WITL101A1002 | | Manufacturer | WINAMOO | | Manufacturer | WINAMOO | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 5 Volts | | Model | WITL101A1002 | | Part Number | WITL101A1002 | | Power Source | Corded Electric | | Product Dimensions | 14 x 14 x 14 cm; 200 g | | Specification Met | CE, NIST, RoHS, UL | | Style Name | Compact | | UPC | 633337511002 | | Unit Count | 1 Count | ## Product Details - **Brand:** WINAMOO - **Colour:** red - **Item weight:** 200 Grams - **Power source:** Corded Electric - **Style:** Compact ## Images ![Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester with Extended Spring Wire & Probe for Car/RV/Vehicles - Image 1](https://m.media-amazon.com/images/I/71QZR9RJNrL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - WINAMOO Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester with Extended Spring Wire & Probe for Car/RV/Vehicles - JOREST 300Pcs Car Fuse Assortment Kit, 160 Mini Blade Fuses Automotive + 90 Standard Auto Fuses + 50 Micro Fuse + 1 Puller – for Car/RV/Truck/Motorcycle(2Amp 3A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A) - Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire, Sharp Hard Steel Probe Vehicle Circuits Low DC Voltage Light 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.us/products/647673771-automotive-test-light-5-90v-digital-led-circuit-tester-voltage](https://www.desertcart.us/products/647673771-automotive-test-light-5-90v-digital-led-circuit-tester-voltage) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-06-04*