--- product_id: 637902458 title: "Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker" brand: "winamoo" price: "€ 58.70" currency: EUR in_stock: true url: https://www.desertcart.hr/products/637902458-test-light-automotive-5-90v-digital-led-circuit-tester-voltage store_origin: HR region: Croatia --- # 0.1V resolution with ±0.2V accuracy 3-48V DC voltage range 110-inch extended spring wire Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker **Brand:** winamoo **Price:** € 58.70 **Availability:** ✅ In Stock ## Summary > ⚡ Diagnose Like a Pro, Drive with Confidence! ## Quick Answers - **What is this?** Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker by winamoo - **How much does it cost?** € 58.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/637902458-test-light-automotive-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 - • **Precision Voltage Readout:** Crystal-clear LED display with 0.1V resolution ensures you never miss a detail, day or night. - • **Ultimate Reach & Flexibility:** 110-inch anti-bend spring wire with large alligator clip for effortless one-hand operation in tight spots. - • **Built for Safety & Durability:** Advanced circuit chip with insulation cover protects you and your device from shocks and burns. - • **Versatile Automotive Diagnostic:** From headlights to fuses, test any vehicle circuit quickly—your go-to tool for every automotive pro and DIYer. - • **Bidirectional Polarity Indicator:** Instantly know positive (red) or negative (green) polarity with intuitive LED signals—no guesswork needed. ## Overview The WINAMOO Test Light Automotive Circuit Tester is a professional-grade diagnostic tool featuring a bright LED voltage display (3-48V DC) with 0.1V resolution and ±0.2V accuracy. Its 110-inch extended spring wire and large alligator clip provide unmatched flexibility for testing automotive circuits, while bidirectional LED indicators simplify polarity detection. Built with a protective circuit chip and insulation cover, it ensures safety and durability. Ideal for checking fuses, batteries, lights, and wiring in cars, trucks, RVs, and motorcycles, this tester is an essential tool for automotive engineers and DIY enthusiasts alike. ## Description WINAMOO Test Light Automotive with Voltage Display for Checking Car Truck RV Motorcycle Fuses & Battery Voltage3-48 V testing range, ideal for car, truck, RV, 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 TESTLED Indicator: Green for negative polarity & 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 3-48V(+_0.2V Accuracy)Resolution: 0.1VPackage Contents: 1* Automotive Circuit Tester with Voltage DisplayHEAVY DUTY DIAGNOSTIC TOOL1. 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 moreThis auto light tester pen will save you time and speed up the job, perfect for automotive use. ## Features - 【Clear Digital Display & Readouts】: WINAMOO automotive circuit tester with a highly clear LED digital backlit display for voltage readings, 0.1V resolution with ±0.2V accuracy gives you clearly visible digital readouts. Compared with LCD lights, this light tester is 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】: WINAMOO 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 | |---------------|-------| | Manufacturer | WINAMOO | | Part Number | WITL109A3716 | | Product Dimensions | 45 x 45 x 190 cm; 200 g | | Item model number | WITL109A3716 | | Power Source | Battery Powered | | Item Package Quantity | 1 | | Measurement Accuracy | ±0.2V | | Included Components | As Shown | | Batteries included? | No | | Batteries Required? | No | | Item Weight | 200 g | ## Product Details - **Brand:** WINAMOO - **Power source:** Battery Powered - **Item weight:** 200 Grams - **Item dimensions L x W x H:** 45 x 45 x 190 centimetres - **Measurement type:** Voltmeter ## Images ![Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker - Image 1](https://m.media-amazon.com/images/I/7136eQDqXUL.jpg) ![Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker - Image 2](https://m.media-amazon.com/images/I/71wpemv8EyL.jpg) ![Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker - Image 3](https://m.media-amazon.com/images/I/71l0W8yldjL.jpg) ![Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker - Image 4](https://m.media-amazon.com/images/I/71P2ucp5ILL.jpg) ![Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker - Image 5](https://m.media-amazon.com/images/I/71KZhhdvScL.jpg) ## Frequently Bought Together - WINAMOO Test Light Automotive 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker - JOREST 300Pcs Car Fuse Assortment Kit, 160 Mini Blade Fuses Automotive + 90 Standard Auto Fuses + 50 Micro + 1 Puller – for RV Camper Boat Accessories (2Amp 3A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A) - Sound Troubleshooting Automotive Relay Tester 12V Auto Relay Diagnostic Tool Small Handheld DIY Car Relay Tester with Battery Clips --- ## 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.hr/products/637902458-test-light-automotive-5-90v-digital-led-circuit-tester-voltage](https://www.desertcart.hr/products/637902458-test-light-automotive-5-90v-digital-led-circuit-tester-voltage) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-24*