--- product_id: 271016301 title: "Large Size Heavy Duty 3-48V Digital LCD Circuit Tester with 140 inch Extended Spring Wire,Car Truck Circuit Test Light Low Voltage & Light Tester with Stainless Probe" brand: "jastind" price: "฿4875" currency: THB in_stock: true url: https://www.desertcart.co.th/products/271016301-large-size-heavy-duty-3-48v-digital-lcd-circuit-tester store_origin: TH region: Thailand --- # ±0.2V Accuracy 3-48V Range 140 inch Wire Large Size Heavy Duty 3-48V Digital LCD Circuit Tester with 140 inch Extended Spring Wire,Car Truck Circuit Test Light Low Voltage & Light Tester with Stainless Probe **Brand:** jastind **Price:** ฿4875 **Availability:** ✅ In Stock ## Summary > 🔧 Test with Confidence, Drive with Assurance! ## Quick Answers - **What is this?** Large Size Heavy Duty 3-48V Digital LCD Circuit Tester with 140 inch Extended Spring Wire,Car Truck Circuit Test Light Low Voltage & Light Tester with Stainless Probe by jastind - **How much does it cost?** ฿4875 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/271016301-large-size-heavy-duty-3-48v-digital-lcd-circuit-tester) ## 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 - • **📏 Extended Reach:** With a 140-inch PU spring wire, you can easily access hard-to-reach circuits without hassle. - • **💪 Heavy Duty Design:** Crafted from shatter-proof acetate fiber, this tester is built to withstand the toughest conditions. - • **🔍 Precision Testing:** Experience unparalleled accuracy with a resolution of 0.1V on a backlit LCD display. - • **🛡️ Lifetime Guarantee:** Shop with confidence knowing your satisfaction is backed by a 100% lifetime guarantee. - • **🔒 Safe for Sensitive Circuits:** Draws minimal current, ensuring your vehicle's delicate electronics remain unharmed. ## Overview The Large Size Heavy Duty 3-48V Digital LCD Circuit Tester is a robust tool designed for automotive professionals and DIY enthusiasts alike. With a wide voltage range of 3-48V, it features a high-accuracy backlit display, durable construction, and an extended reach of 140 inches, making it ideal for testing various vehicle electrical circuits safely and efficiently. ## Description JASTIND professional digital Circuit 3-48V Tester Designed for car electrical circuits,automotive battery, battery charging systems,ignition systems,which is a must have tool for any automotive engineer ,electronic engineer or circuits DIY . *3-48v widely use for circuits test. *.1 Accuracy voltage reading on white Backlit digital display. *.Made with sharp stainless steel probe for piercing wires, for hard to reach areas. *.Portable 140 In m long enough PU spring wire for easy operation *.Constructed with acetate fiber, high toughness and shatter-proof. Please Note This is a negative mode one-way current circuit tester,when do measuring please attach the clamp to the grounding or negative pole. ## Features - 【3-48v Wide Range】 3-48v widely use digital circuit tester/circuit test light, designed to check car vehicle electrical circuits, headlights, taillights, turn signal circuits, faulty sockets, fuses, automotive battery and other 3-48v DC wirings and circuits. - 【Computer Safe Accurate Backlight Digital Display】 Resolution to .1V voltage reading on white backlight LCD digital display, with high accuracy to ±0.2V. Make it convenient and clear to check or maintain your vehicle circuits in a dark place. Which draw much less current than the incandescent lamp so it's less likely to damage sensitive circuits. - 【Quality Made And Heavy Duty】 Constructed with acetate fiber body, more toughness and shatter-proof than normal material. Large and heavy duty than other test lights on the market; sharp stainless steel probe for piercing wires and for hard to reach areas. - 【Portable Pu Spring For Easy Operation】 Portable high quality max extended to 140 inch long enough PU spring wire, compitable with large alligator clip for easy one-hand automotive circuits testing and also for convenient tool storage. - 【Free 100% Lifetime Satisfaction Guarantee】We always stand behind our products with lifetime customer satisfaction guarantee, so click "Add to Cart" with confidence today. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Tianchang Zhaohong Instruments | | Part Number | JTCVT-01A | | Package Dimensions | 27.5 x 6.8 x 4.5 cm; 140 g | | Item model number | 13 | | Size | 3-48V circuit tester | | Colour | White | | Style | Modern | | Material | Stainless Steel | | Power Source | Battery Powered | | Item Package Quantity | 1 | | Certification | REACH | | Batteries included? | No | | Batteries Required? | No | | Item Weight | 140 g | ## Product Details - **Brand:** JASTIND - **Power source:** Battery Powered - **Style:** Modern - **Colour:** White - **Item weight:** 140 Grams ## Images ![Large Size Heavy Duty 3-48V Digital LCD Circuit Tester with 140 inch Extended Spring Wire,Car Truck Circuit Test Light Low Voltage & Light Tester with Stainless Probe - Image 1](https://m.media-amazon.com/images/I/61uP4FymsKL.jpg) ## Questions & Answers **Q: Does this tester have high enough resistance to load a circuit while testing like a traditional incandescent test light?** A: To load (draw current) one needs a low resistance, not high. In this case I do not think the manufactures specifies the testers input resistance. It is an important factor for sure. **Q: We purchased ours on 3/10 and it has already stopped working. Is there any guarantee or offered replacement? Barely had a month...** A: dose not work how to replace **Q: Is it suppose tp have a fuse in it?** A: No fuse needed, the electronics in it work on the power when its connected to the power of whatever ur working on. **Q: Does it bave light and beeper?** A: No beep. Display only lights up ## Frequently Bought Together - Large Size Heavy Duty 3-48V Digital LCD Circuit Tester 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 + 1 Puller – for RV Camper Boat Accessories (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.co.th/products/271016301-large-size-heavy-duty-3-48v-digital-lcd-circuit-tester](https://www.desertcart.co.th/products/271016301-large-size-heavy-duty-3-48v-digital-lcd-circuit-tester) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*