--- product_id: 125799304 title: "LCD Digital Display Test Light with Blue Backlight" brand: "jastind" price: "$39.86" currency: USD in_stock: true category: "Jastind" url: https://www.desertcart.us/products/125799304-lcd-digital-display-test-light-with-blue-backlight store_origin: US region: United States of America --- # LCD digital blue backlight display 140-inch flexible PU spring wire 3-65V wide DC voltage range LCD Digital Display Test Light with Blue Backlight **Brand:** jastind **Price:** $39.86 **Availability:** ✅ In Stock ## Summary > ⚡ Power Up Your Diagnostics with Precision & Reach! ## Quick Answers - **What is this?** LCD Digital Display Test Light with Blue Backlight by jastind - **How much does it cost?** $39.86 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/125799304-lcd-digital-display-test-light-with-blue-backlight) ## Best For - jastind enthusiasts ## Why This Product - Trusted jastind brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Safe Design:** Stainless steel probe with insulated rubber tip pierces wires safely without damage. - • **Precision Voltage Insight:** Accurate ±0.2V readings with clear blue backlit LCD for day & night diagnostics. - • **Trusted Long-Term Partner:** Built tough with acetate fiber body and backed by 1-year warranty plus 24/7 support. - • **Ultimate Reach & Flexibility:** Extra-long 140-inch PU spring wire ensures effortless access to tight, hard-to-reach circuits. - • **Bidirectional Polarity Testing:** Test voltage polarity both ways with a smart alligator clip for foolproof connections. ## Overview The JASTIND Heavy Duty 3-65V DC Test Light is a professional-grade automotive circuit tester featuring a wide voltage range, bidirectional polarity detection, and a crystal-clear blue backlit LCD display. Its 140-inch PU spring wire and durable stainless steel probe provide unmatched flexibility and safety for precise electrical diagnostics. Designed for both business and household use, it combines accuracy, durability, and ease of use, backed by a 1-year warranty and responsive customer support. ## Description Buy Heavy Duty 3-65V DC Test Light Automotive, 140" Spring Wire Circuit Tester | LCD Digital Blue Backlight Display, Bidirectional Volt Test, Polarity Indicate, Stainless Steel Probe, Brass Alligator Clip: Circuit Testers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 【Wide testing range & Voltage Polarity Testing】3-65v low DC volt circuit test light, designed for checking various vehicles' electrical circuits, such as automotive headlights, taillights, faulty sockets, fuse, also for testing other 3-65V DC wiring and circuits. This is also a bidirectional voltage tester with volt polarity indicating, you can attach the alligator clamp either to ground or positive. A must have tool no matter for business or household use, will serve you faithfully for years. - 【Computer Safe & Backlight Digital Display Part】Heavy Duty circuit light tester with highly clear LCD digital blue backlight display screen, resolution to .1V voltage reading with high accuracy to ±0.2V, clear & visible digital readouts for day and night. JASTIND test light draws much less current than the incandescent lamp, which is less likely to damage sensitive circuits. - 【Quality Made Tester Body】Professional automotive circuit tester with premium acetate fiber body, allows for more toughness and durability. Sharp stainless steel probe for piercing wires effortlessly, also for hard to reach tight areas. Along with insulation protective rubber tip to against electric shock. - 【Extended PU Spring & Large Alligator Clip】High quality 140 inch long enough PU spring wire offers more flexibility, lighter and more durable than normal cable wires, heat-insulation and oil resistance for daily use. Attach with large size alligator clip for easy one hand operation, also for convenient use and storage. - 【Must-Have for Long-Term Use】If you are looking for a durable circuit testing tool, this one is for you. We always stand behind our products, we provide up to 1 year quality assurance, 7*24 hours email service. Any question, just let me know. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PX16XDX | | Best Sellers Rank | #4,121 in Automotive ( See Top 100 in Automotive ) #3 in Electrical System Tools | | Brand Name | JASTIND | | Color | Red | | Compatible Devices | Vehicles with 3-65V DC electrical systems | | Customer Reviews | 4.6 4.6 out of 5 stars (6,539) | | Item Weight | 140 g | | Manufacturer | JASTIND | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 3 volts | | Model | 13 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | JTCVT-01C | | Power Source | Battery Powered | | Specification Met | NIST, UL | | Style Name | Electronic | | UPC | 682698800003 | | Unit Count | 1 Count | ## Product Details - **Brand:** JASTIND - **Color:** Red - **Item Weight:** 140 g - **Power Source:** Battery Powered - **Style:** Electronic ## Images ![LCD Digital Display Test Light with Blue Backlight - Image 1](https://m.media-amazon.com/images/I/71Xse13hFYL.jpg) ![LCD Digital Display Test Light with Blue Backlight - Image 2](https://m.media-amazon.com/images/I/81DLdiE5sVL.jpg) ![LCD Digital Display Test Light with Blue Backlight - Image 3](https://m.media-amazon.com/images/I/71FwyoUUEIL.jpg) ![LCD Digital Display Test Light with Blue Backlight - Image 4](https://m.media-amazon.com/images/I/71zNJVzpduL.jpg) ![LCD Digital Display Test Light with Blue Backlight - Image 5](https://m.media-amazon.com/images/I/517hMAOQ-yL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How can i exchange this item mine is not working** A: Put it in the trash and leave feedback so other don't make the same mistake as we did. I would never recommend this item to anyone! Mine stopped working too, waste of money... **Q: If i use this tool to check a 24v dc circuit how much current will it draw? my goal is something around 1amp at 24 volts.** A: It depends on what system you checking some starter systems drive to 160 A **Q: Ho long does it take for display to indicate voltage?** A: If your connected to a proper ground such as the negative post of the battery it should be immediately **Q: Does the tester have a visible light? I need to test pulsing ignition circuits and a digital meter alone would be too slow to react.** A: It does not have a pulsing light. The digital readout lights up, then shows voltage. Although you could go off of the screen lighting up, but i'm not sure how accurate that would be. ## Frequently Bought Together - Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe - 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/125799304-lcd-digital-display-test-light-with-blue-backlight](https://www.desertcart.us/products/125799304-lcd-digital-display-test-light-with-blue-backlight) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-14*